£100 prize to the first correct solution opened on 22nd March 2024.
Across
1 Performance of an arse loosely enthralling one (7)
5 Bribe returned – Davey was affected? (5)
9 Cream on goolies – inside, not on the outside (5)
10 Cats start to tongue Harry which encourages mouse activity (9)
11 His Majesty's now possibly pissed at three (7)
12 Labour might require such a device as sticking Penny in the military! (7)
13 Dicky, on going arse over tip, gets tender (5)
15 House cover-up is effected by one old PM (8)
18/1dn. Balls possibly in line of fire from such an unthinking response? (8,8)
19 Strip clubs inside bar entrance (5)
21 For sale: kinky casual wear (7)
23 Speaker's stand on unstable sort being introduced to drink (7)
25 Turned out lousy, being in need of instruction (9)
26 Screwed on entering appropriate place? (5)
27 Only recently painted as tasteless? (5)
28 Entrepreneur (as Ian?) protects massive land area (7)
1 See 18ac. 2/24 Fail to separate oddballs, as Republicans do around Trump (5,5)
3 Mean Bottom or Scrooge? (9)
4 Lords chief dodgy 'cure' for dishonest gain (5)
5 The game of Roger Roger (5)
6 Government aimed to ditch a communiqué (9)
7 Part inside testicles – can't stand (6)
8 In canteen, handy for the boozer (8)
14 A senior, given time, gets caught in fact, in 'flagrante' –"marvellous!" (9)
15 Arse wobbled in true style, darling (8)
16 Like a strict TT, stony, son-of-a-bitch, eastern Republican (4,5)
17 TV etc showing recurring image: ex-royal Alexandra's butt (3,5)
20 Flash's uniform accommodating large body (6)
22 Guardsman finally eases off penetration (5)
23 Rooftop game: letting bastard go (5)
24 See 2dn.