This crossword No. 26477 clues and answers were published on Sat 24 Jan 2015 and the puzzle can be visited by following The Guardian Prize Crossword No. 26477 link.
All Across Clues and Answers:
1-across – Guy’s M? : BONFIRE
5-across – See 19 : INFERNO
9-across – See 1 : NIGHT
10-across – Nudist finally put on clothes to arouse : STIMULATE
11-across – Picture that remains in Margate, if designed by Emin, originally : AFTERIMAGE
12-across – Piece of papyrus, edges worn : USED
14-across – Welsh M? : STDAVIDSDAY
18-across – Thinner bit, stripe I gathered : WHITESPIRIT
21-across – Ultimately quaint, small and cute? : TWEE
22-across – Groom admits the issue then starts to cause angst — no getting out of it? : PRISONCAMP
25-across – Return of musical chap bringing back memories : EVOCATIVE
26-across – A number stuck on it, nothing like porridge! : OATEN
27-across – Reparation for each of 1 down, 4, 16 and 23? : MENDING
28-across – Artist is heading for Shanghai in China : MATISSE
All Down Clues and Answers:
1-down – Very little covering cop up : BANTAM
2-down – Deny the SW entrance opposite to this? : NEGATE
3-down – Curious setter in Shed, perhaps : INTERESTED
4-down – Brood raised around southern English town : EPSOM
5-down – One Conservative in political control, not half becoming slippery : ICINGOVER
6-down – Tube was quick, they say? : FLUE
7-down – Creative piece knocks outstanding hospital, oddly oddly? : RHAPSODY
8-down – Public visiting times when work stops, always welcomed : OPENDAYS
13-down – Go nude with it, doubly unlikely to get censorship : EDITINGOUT
15-down – Record in running final : DEPARTING
16-down – Squad requiring a measure of power to break through thin line : SWATTEAM
17-down – Clean window pane at the edges when cracked : WIPEDOWN
19-down – Poetry mixing fire and sonnet? : DANTES
20-down – Bum safe when evacuated, stink contained : SPONGE
23-down – Stop inhaling a vapour : STEAM
24-down – C Clay country? : MALI
This crossword has in total 30 where 14 are across and 16 are down.