This crossword No. 12963 clues and answers were published on Sat 26 Nov 2011 and the puzzle can be visited by following The Guardian Quick Crossword No. 12963 link.
All Across Clues and Answers:
1-across – Insubstantial : FLIMSY
4-across – Seat : COUCH
7-across – Seemly : PROPER
8-across – Public house : TAVERN
9-across – Spoils — heavenly body : MARS
10-across – Exaggerated feeling of wellbeing : EUPHORIA
12-across – Revolutionary British battleship : DREADNOUGHT
17-across – Talk — opposite : CONVERSE
19-across – Precipitation : RAIN
20-across – Dried grape : RAISIN
21-across – Inequitable : UNFAIR
22-across – Feeble-minded : DOTTY
23-across – Make known : REVEAL
All Down Clues and Answers:
1-down – Pushy — send : FORWARD
2-down – Deadlock : IMPASSE
3-down – Capitulate : SURRENDER
4-down – Collision : CRASH
5-down – Bring to light : UNEARTH
6-down – Large aircraft shed : HANGAR
11-down – Bring before a criminal court : PROSECUTE
13-down – Act without restraint : RUNRIOT
14-down – Tallest mammal : GIRAFFE
15-down – Unimportant : TRIVIAL
16-down – Afraid : SCARED
18-down – Improve the mind : EDIFY
This crossword has in total 25 where 13 are across and 12 are down.