First correct solution received by email wins a pristine copy of A-Z of Cardiff that I recently found in the attic (published 2016, retail price £14.99, now out of print).

Closing date for entries 20/12/25. Solution in January

ACROSS
1 Naughty R Dahl ate around Llandaff, for example (9)
6 Marketing leaflets jolt with force (5)
9 What Starmer did with Trump: a loud drag act (7)
10,4 Kinky gay Dan (rubber) is on the shelf (Dic knows) (7,5)
11 When England should cry for Will and Harry? (2,7,3)
14 Take in a songbird (5)
15 Pru, Poirot fan, exudes a mild aroma (9)
16 Duffle I’ll throw out – satisfied? (9)
17 In short, this is to blame for Rick Wakeman’s digital career (5)
18 At 83, Gloria Gaynor’s prediction has sure proved correct! (1,4,7)
22 Can’t remember a seminar that’s endless and complicated (7)
23 Pause Bay redevelopment! Refrain! (7)
24 ‘Big Jugs’ collects discharge, front to back (5)
25 Consequently, ferret about with hoe (9)

DOWN
1 Lovable, prompt, has time (4)
2 Junk grips woman called Fanny (4)
3 Philosophers disturb the French with “It’s as it is. Next!” (15)
4 See 10
5 Feel free to scold when wearing a hat (9)
6 Quite an operation for matchmaker to arrange something for the weekend, olé! (6,2,7)
7 Strolling along a winding riverbank (10)
8 Debtor, here today, gone tomorrow (10)
12 Lop frigate off – it’s wasteful (10)
13 Chaotic Blue decline: nod with enthusiasm! (10)
15 Vote against cruel taunt of toxic poison (9)
19 Upper-Classes reside in the Vale, for what it’s worth (5)
20 From father next to nothing? Rail! (4)
21 Butch lesbian dug a mound of earth (4)