8-across – Like strand in character flaw, we hear : LITTORAL

9-across – Erred badly penning article, so looked through again : REREAD

10-across – Call for peace by American that’s false : SHAM

11-across – How data can be misused in unusual way : SINGULARLY

12-across – Spoil Monday’s leader in Guardian, say : PAMPER

14-across – List site incorrectly for highly selective types : ELITISTS

15-across – Team retaining nonsense? Just the opposite – they emend as necessary : EDITORS

17-across – Paul, Pasquale et al. soon succeeded after Brendan’s misdirected : ANONYMS

20-across – In which it’s possible to score with pizzazz? No way! : SCRABBLE

22-across – Wrongly interfere with doctor in case : MOLEST

23-across – Supporting old fashions, including about checks for errors : PROOFREADS

24-across – Result of key choice being botched in party politics : TYPO

25-across – Mark improperly using wide variety of grades : DEFACE

26-across – How one makes gaffes, reversing words lazily : STUPIDLY

1-down – In the course of inserting clip, got sound wrong : MISHEARD

2-down – Half of our letters now known to be etymologically incorrect : ATOM

3-down – Boob putting in answer, oddly – this might help : ERASER

4-down – Line in book below is solecism : BLANDER

5-down – Female badly ruined a kind of slip that’s revealing : FREUDIAN

6-down – One part of basic education helping a learner lacking in logic : IRRATIONAL

7-down – Prince who knew funny man : HAMLET

13-down – Misrepresented graph, say, to mathematician : PYTHAGORAS

16-down – In grass, finding seed case, I corrected grave mistake? : REBURIED

18-down – Go astray delivering letters : MISSPELL

19-down – Word of explanation as dandies err, initially, about cape : BECAUSE

21-down – Move erratically at speed, possibly making ace err : CAREER

22-down – Fail to hear spoken signal on stage in badly directed play : MISCUE

24-down – Set off for journey that could also be mistake : TRIP

1-across – See 5 : CAPTURE

5-across – Environmental process which makes additive addictive? : CARBON

9-across – Measurements of pants, say, worn by Democrat : BREADTHS

10-across – Capitalist concerned with career regressing : TRADER

12-across – Metal band supports a barrel and tub containing litres : BLACKSABBATH

15-across – See 5 : ANDSTORAGE

17-across – Bits of information on King Ferdinand who was England’s defender : RIO

19-across – Modest Mussorgsky’s finale preceded by silence : SHY

20-across – Fiery compiler running into Volkswagen Beetle’s back : PASSIONATE

22-across – Welcomed by people in party, record cover song : GREENSLEEVES

26-across – Poisonous substance picked up, creating alarm : TOCSIN

27-across – Get utterly wasted, say, in party I held in public : OVERDOIT

28-across – Prevent drinking that’s wrong, but far from sinister? : DEXTER

29-across – Kudos when cracking the Guardian’s puzzles : SUDOKUS

1-down – Swans around in glamorous Bochum : COBS

2-down – Speaker’s platform for Hague or Cameron, say : PEER

3-down – Excessive sandwiches left, as well as filling of pate in roll : UNDULATE

4-down – See 24 : ETHIC

6-down – One needing oxygen stood up, admitted to A&E : AEROBE

7-down – When one has a mop, with tidying up required? : BADHAIRDAY

8-down – Where to see Kim Kardashian’s silhouette and rear? Hoot wildly : NORTHKOREA

11-down – Chatter about drug smuggled into American customs : USAGES

13-down – Like a prophet doomed to stifle right expression of despair : FARSIGHTED

14-down – Spin around a thousand times, inspiring German car racer : EDDYMERCKX

16-down – Marry a second time, and that’s no joke : REALLY

18-down – Take drugs with my boss, looking rather shabby : DOGEARED

21-down – Only half decent police siren may do so : ENTICE

23-down – The King has energy to replace current and present workforce : ELVES

24-down – Attitude to Labour, with changeable Keir hot and cold : WORK

25-down – Scheduled arrival times for letters from overseas : ETAS

1-across – Supplying drugs offence admitted by setter? : DOSING

4-across – Cockney tough guy lying about in Habitat : TUNDRA

9-across – Madrid’s No.11 in times gone by : ONCE

10-across – Thrust from Prince murdered Polonius : PROPULSION

11-across – Spooner’s horse ran into metal bar : MAGNET

12-across – Single fly on counter for fruit : TANGELOS

13-across – Broadcaster leaves to shoot up : SKYROCKET

15-across – Prince and Horatio finally getting ring : HALO

16-across – My interpretation of timeless ghost : GOSH

17-across – A TV show like this ends in any way whatsoever : ASITCOMES

21-across – English learning about evil castle : ELSINORE

22-across – Short fitting skirts nearly dry : ABRUPT

24-across – Two adjectives for 26 making cheese : DANISHBLUE

25-across – At first, Rosencrantz and Guildenstern rejected black clothes : GARB

26-across – Prince Harry’s initial charm after leaving university : HAMLET

27-across – Nurse not the first to swallow unknown aphrodisiac : OYSTER

1-down – State secret broken by mad men : DENMARK

2-down – Gertrude possibly isn’t bothered about termination of spouse : STEIN

3-down – Description of Rupert Murdoch brought up in explicit opening : NEPOTIC

5-down – America welcoming performer in flip-flops : UTURNS

6-down – Outlaw high speed on busy road : DESPERADO

7-down – Ophelia exhausted and upset over endlessly gloomy lover : AMOROSO

8-down – Youths with Laertes breaking wind : SOUTHEASTERLY

14-down – Hillbilly saying Curtis Strange is married : RUSTICISM

16-down – Giant pig welcomes dog turning up : GOLIATH

18-down – Drama of T.Rex getting on Glastonbury at last : TRAGEDY

19-down – Claudius maybe has power over queen in northerly city : EMPEROR

20-down – Doctor Who overwhelmed by support of American singer : TOWHEE

23-down – Accurate observance in speech : RIGHT

8-across – Colander retains bananas and last bit of pear : STRAINER

9-across – Lots of time to fast in outskirts of Paisley : PLENTY

10-across – Ailments and their possible treatment not started : ILLS

11-across – Rotarian and two daughters rambling and slowing down : RITARDANDO

12-across – Egyptian god’s very large flag : OSIRIS

14-across – Weighty celebrities and one without hope : FATALIST

15-across – Endlessly respect a liberal naval officer : ADMIRAL

17-across – Rattle, Sargent and Solti, say, from the ‘Sir’ team : MAESTRI

20-across – Texan symbol senator left out : LONESTAR

22-across – Motorway and another’s highest point – accident! : MISHAP

23-across – Earlier on two yews both cut: rarest sort : YESTERYEAR

24-across – A call for silence works in outlet : SHOP

25-across – Tiny bird heard in French city : RENNES

26-across – Hispanic hero keeping within North American tribe : CHEROKEE

1-down – Mannered lives featured in the latest fashion : STYLISED

2-down – Official orders upset some of the club’s walkers : LAWS

3-down – Nursed like Mum did with babe, but ready to fight : INARMS

4-down – Agreeing finally to confirm delight : GRATIFY

5-down – G&S composition is awkward to repeat : OPERETTA

6-down – Holders of sporting trophies adapting small diets : MEDALLISTS

7-down – Active barber’s arguing : ATODDS

13-down – Nine others ordered imitation diamond : RHINESTONE

16-down – Chance ordering teas first to star : ASTERISK

18-down – Analyse article about port outside : READOVER

19-down – Really strong action needed – old City office sacks head : URGENCY

21-down – Leading batsman’s first act : OPENER

22-down – One who ticks scripts with felt-tip pen : MARKER

24-down – Walkway seen from Piraeus to Athens : STOA

1-across – Coherent American serving in pub : LOGICAL

5-across – Work repeatedly to save part of hospital with no roof : OPENTOP

9-across – Waste hour in Ealing? Not all of it : URINE

10-across – Having cash to flash, a dodgy dealer catches 2 : AFFLUENCE

11-across – Old detective, one entering shop for a wheeze, say : EXPIRATION

12-across – Scottish writer cutting the BS and the pot : URN

14-across – Maybe Marge Simpson’s opening these funny programs : SPREADSHEETS

18-across – Nerd with new Capri pants, not a sweater? : PRINCEANDREW

21-across – Only half of teachers as keen to get sweet food : TEA

22-across – Drop of claret is too bland when drunk : BLOODSTAIN

25-across – Spear carrier hasn’t finished with e.g. Brad Pitt fan? : EXTRACTOR

26-across – Ancient characters travel westwards with unsubtle performer : OGHAM

27-across – Conceal what tourists may do in Greece, losing energy once : SECRETE

28-across – Oddly, Hoover now wild about Democratic Party in US : HOEDOWN

1-down – Dropping ecstasy, US singer looked angry : LOURED

2-down – Contagious virus – complaint with extra power : GRIPPE

3-down – Unfairly select pop diva track still on the radio : CHERRYPICK

4-down – Lizzie’s jacket fitting Rose remarkably : LEAPT

5-down – Old fellows with lots of cash getting dumped : OFFLOADED

6-down – Old French bread and sauce American leaves out : ECUS

7-down – Pious hairstyles certainly embraced by many : TONSURES

8-down – Sunak welcoming sale on modified foreign imports, say : PLEONASM

13-down – Sixty engineers stopping a source of excitement on match day : THREESCORE

15-down – English setter better without clothing decoration : EPAULETTE

16-down – Speaks incoherently, even leaving S Club 7 : SPUTTERS

17-down – Performed start of play, Chekhov’s first with a message : DIDACTIC

19-down – It’s heard in Kabul at posh parties : PASHTO

20-down – Swiss banker, briefly working, gets indicator of time : GNOMON

23-down – Marx, after revolution, becoming media personality : OPRAH

24-down – See 21 Across : CAKE