10-across – Clan’s rodent making no noise. God! : MACDERMOT

12-across – See 10 : ODIN

13-across – Orator’s reserve during some of croquet game, imprisoned by one Greek king : CICERO

15-across – See 13 : AGAMEMNON

16-across – Piano pieces bring endless pain to young girl’s condition, say : GYMNOPEDIES

17-across – See 16 : STATE

18-across – Supplements men on strike backing silver tree fern : PIECESOUT

19-across – See 18 : PONGA

20-across – ’70s US comedy show with two French articles about Yale’s farm manager : LAUGHIN

21-across – See 20 : ALFRAMSEY

26-across – Gangster in America evades the masses and boasts about derring-do, for starters : CAPONE

28-across – See 26 : CROWDS

30-across – Censures US porters having poison at police station docked : REDCAPS

32-across – See 30 : TANGHIN

34-across – Reserve copper in Germany, half-cut, takes lid off cylinders damaging Spenser’s coffer : BACKUP

36-across – See 34 : SCRYNE

39-across – Tory Lord, wildly errant, having sets of 12 Ford models : TREFGARNE

41-across – See 39 : ZODIACS

47-across – Foreign pupil’s name left off team falling asleep on channel : ELEVE

48-across – See 47 : SOMNOLENT

49-across – Counterfeit note at college having US summer review of European gallery : FALSE

50-across – See 49 : RIJKSMUSEUM

51-across – Out at night, cannot lure out top escapee leaving swindler in gaol : NOCTURNAL

52-across – See 51 : CONMAN

53-across – End of autumn shock — leaves unfold on 60% of roses, fenced off : STUN

54-across – See 53 : FRONDESCE

1-down – My admission to being out of date causes stalemate around a neat ancient Iranian city : IMPASSE

2-down – See 1 : ECBATANA

3-down – Tops of elms growing in vivid green high Austrian alpine valley dwarfed 10 dead, swaying : DEFEREGGEN

4-down – See 3 : STUNTED

5-down – Poet’s lines about being only cut on poor ’40s/’50s movies — could be Rififi and not If … : LONGFELLOW

6-down – See 5 : FILMNOIR

7-down – Extra drapes ordered across a broad area by truculent single worker : WIDESPREAD

8-down – See 7 : DEFIANT

9-down – Institution with bad smell upset the French doctor and farceur — it’s a French retail chain : BORSTAL

11-down – See 9 : MONOPRIX

14-down – Fashion merchants are those who show promise having sculpted tails : COSTUMERS

22-down – See 14 : SCUTS

23-down – Dismal Eisteddfod winner turned up uncertain at end of speech : DRAB

24-down – See 23 : HAZY

25-down – Flower having a virtually unrelenting smell. Good! : ASTER

27-down – See 25 : PONG

29-down – Black butt extinguishes powdered tobacco like this, note : STUB

31-down – See 29 : SNUFFSOUT

33-down – Store has in frilly hydrangeas but is unable to arrange 10 in temporary quarters : HORTENSIAS

35-down – See 33 : CANTONMENT

37-down – Valerie Le Vaillant has to scold independent union leader, having entered the Co-ops drunk for unwanted effect : CHIEFGUIDE

38-down – See 37 : POSTECHO

40-down – Supports male during stoppages with quiet cuddle. That’s not right! : ARMRESTS

42-down – See 40 : CALMNESS

43-down – To remove a priest is an obstacle to one judge living around capital : DEFROCK

44-down – See 43 : BEIJING

45-down – Waved goodbye, having repelled an intruder nourished at spa : SEENOFF

46-down – See 45 : WELLFED

1-across – Quick easy victory, something precious about it : PROMPT

4-across – Creative mind taking an age to orbit Pluto : EDISON

9-across – See 3 : EGGS

10-across – Golden fur is a euro — that’s fake? : AURIFEROUS

11-across – Bum soaked, last of water going in with both taps : WRETCH

12-across – Growth of many branches as US retailer backs Scandinavian currency : SYCAMORE

13-across – Threw good 9s like this? Some initially getting caught : UNSADDLED

15-across – Pastry dish for lunch about noon, originally : FLAN

16-across – Where tools may be dropped : SHED

17-across – Hearing nothing, notes fade badly : STONEDEAF

21-across – Weapon — but isn’t Jerry a pacifist? : TOMAHAWK

22-across – Pure way to cut meat : VESTAL

24-across – Cold as 9? : HARDBOILED

25-across – Deep fried successor for Nietzsche? : RICH

26-across – Not entirely leporine animal, an equine badger! : HARASS

27-across – Smart putting waste collector behind skip for a start : SNAPPY

1-down – Secure banking payment, crude stuff : PIGIRON

2-down – Start acting? : ONSET

3-down – Slovakia and Jamaica : POACHED

5-down – Bored, it’s suggested, with one in ruin : DEFACE

6-down – Run off and drained like 9? : SCRAMBLED

7-down – News about diversion of route — no charge for it : NEUTRON

8-down – Smart as a cyanide-laced salad? : DRESSEDTOKILL

14-down – A law together with sovereign pontiff : ALEXANDER

16-down – Bear most upset over a chimp, no little monkey : STOMACH

18-down – Nothing very exciting nearby, both heading northward from Reno, say? : NEVADAN

19-down – Some boxing leading to riot : ANARCHY

20-down – Little time in short tragedy, it’s noted : FAMOUS

23-down – Bind bits up : STRAP

1-across – Very keen to stay around conference venue : POTSDAM

5-across – Hacked Off, with film star involved : ANGERED

9-across – Violently attacks stationer after a fracas : TEARSINTO

10-across – What can be played by men on horseback : ORGAN

11-across – That bloke’s southern German : HESS

12-across – Spirit audience’s not picked up — it’s insubstantial : SCOTCHMIST

14-across – One-time female’s a divine creature : ATHENA

15-across – Support government resigning — claims they want out : LEAVERS

16-across – See 5 down : OFPAPER

18-across – Comic routine about height in bad taste : SHTICK

20-across – Done with PM’s backing — Sun perhaps fails to respond to alarm : OVERSLEEPS

21-across – Put down before Indiana city : LAIN

24-across – Jobs lost everywhere? Not entirely : STEVE

25-across – Awful from City playing b***** Real : EXECRABLE

26-across – Attitudes accepted by detective in force : MINDSET

27-across – Royal officer completely losing head over queens : EQUERRY

1-down – Spurs No 2 has long throw : PITCH

2-down – Start in winding passage : TRANSIT

3-down – Henry’s climbing down over style : DASH

4-down – Genuine? Hmm! React to settlement : MUNICHAGREEMENT

5-down – … that’s in force? Please, it’s a whopper — scrap! : AWORTHLESSPIECE

6-down – Don’t stop upsetting party! — PM receiving one side’s cheers : GOODHEALTH

7-down – Musical genre infuriated man : RAGTIME

8-down – Shows up group : DENOTES

13-down – Jail those selling drugs to clerical people : PENPUSHERS

16-down – Making love shortly after wrestling — animal! : OPOSSUM

17-down – Child’s cut not real — point taken : PRETEEN

19-down – House cleaner receives award : CHAMBER

22-down – Wanting help, joint letter said : NEEDY

23-down – Married woman’s cheating husband finally kicked out : FRAU

1-across – Idiot not entirely without feeling, shame one has quit : NUMPTY

4-across – Having rubbed out old boy, drug lord understood to be a slimy crawler : ESCARGOT

9-across – Screened by fifth columnist, general dropping off : SLEEPY

10-across – General places reflected in Indian city : AGRICOLA

11-across – Knot tied, coveter set to be someone walking sneakily down the aisle? : STOREDETECTIVE

13-across – Question clothes a nudist designed for religious festival : WHITSUNDAY

14-across – Test of reading and learning, primarily : ORAL

16-across – Indian, post-Haydn, sounding game? : SIKH

18-across – In leak, one stopping vehicle to obstruct legislation : FILIBUSTER

21-across – Fiddles embracing lively sonatas, or encapsulating the ultimate in dumb instruments? : CONTRABASSOONS

23-across – Written about in almanac, I remain like 17, perhaps : AMERICAN

24-across – Master on something stringed, as cellist : YOYOMA

25-across – Critical supporter adds quality to piano parts : KEYSTONE

26-across – Capital inspiring lieder is, for starters, the capital for a composer! : BERLIN

1-down – Feature is familiar with broadcast : NOSE

2-down – Great musicians playing sitar with me : MAESTRI

3-down – Better money for big guns : TOPBRASS

5-down – One of 12 with bow, as guitarist after a fiddle : SAGITTARIUS

6-down – A bit of music to be shared equally : APIECE

7-down – Sticky stuff on bottom of cone in tree, more nutty : GOOFIER

8-down – Journeyman composer beginning to languish in winter, without success : TRAVELLER

12-down – Contrarily, was evil mind a French horn player? : DENNISBRAIN

13-down – Wine not half dry, where bottles kept a joke : WISECRACK

15-down – Figure below zero turned around for everyone in economic region : EUROZONE

17-down – President as fiddler : KENNEDY

19-down – Flipping brilliant hiding data sheets in the kitchen : TINFOIL

20-down – God stands above bird, accepting son as the Creator : ARTIST

22-down – A shade cooler around start of winter : FAWN

1-across – American dance English society shunned : CHARLTON

5-across – Leaving Oxford college, I look back : BALL

8-across – Remove black stuff from vehicle sunk in bottom of river after reversing : DECARB

9-across – Delights offered by girl heading off with workers : ENCHANTS

11-across – Orchestra in triumph : WILSON

12-across – Islander, one in brown, given initial thanks and greeting : TAHITIAN

13-across – Harmless explosive containers, 50 fired : BANKS

14-across – Something required not so much, not half creating anger : NEEDLE

16-across – Sort of barrier when children start school with hesitation : SEPTUM

18-across – Short day, beginning to end : HURST

21-across – Manage to survive? That seems unlikely! : GETALONG

22-across – Worries when first son does a bunk : PETERS

24-across – Bully — this person’s impeding performer : DOMINEER

25-across – Ways to get a mention : STILES

26-across – Any number being sheltered? : HUNT

27-across – Officer conveyed by underground transporter : CHARLTON

1-down – Religious leader creating new circle : CLERIC

2-down – Gather in the morning on a ship : AMASS

3-down – The French prohibition operating in a Mediterranean country : LEBANON

4-down – Nothing stays still with energy in old play : ORESTES

6-down – Cunning fellows squatting in a gym — somewhere to live : APARTMENT

7-down – Left the wounded friend with fatal consequences : LETHALLY

10-down – One of the others at the women’s party? : COHEN

13-down – Fighting unit to strike bellicose male, reservists brought in : BATTALION

15-down – Monster insects : BEHEMOTH

17-down – Yesteryear’s chancellor with nothing to hide : MOORE

18-down – Artist in courtyard overlooked by house : HOGARTH

19-down – About to join exhibitionist as one needing to get on with the rest? : REPOSER

20-down – Dye that’s yellow, awfully nice : ORCEIN

23-down – Pervert who was encouraged to pick pockets? : TWIST