This crossword No. 12855 clues and answers were published on Sat 23 Jul 2011 and the puzzle can be visited by following The Guardian Quick Crossword No. 12855 link.
All Across Clues and Answers:
1-across – Relating to the universe : COSMIC
4-across – Expensive violin : STRAD
7-across – Fungus causing decay of timber : DRYROT
8-across – Ship’s officer attending to the welfare of passengers : PURSER
9-across – Thread — tale : YARN
10-across – Blissful : ECSTATIC
12-across – Somnambulist : SLEEPWALKER
17-across – Skimpy women’s clothing : HOTPANTS
19-across – System of : YOGA
20-across – Plump : CHUBBY
21-across – Rehearse — exceed : GOOVER
22-across – Skilful : ADEPT
23-across – Useful things : ASSETS
All Down Clues and Answers:
1-down – Dead body : CARCASS
2-down – Eccentric : STRANGE
3-down – Made public : INTHEOPEN
4-down – Inhibit — exploit : STUNT
5-down – To steer : ROSETTE
6-down – Straightforward : DIRECT
11-down – Areas into which the zodiac is divided : STARSIGNS
13-down – Salad vegetable : LETTUCE
14-down – Principal theme : KEYNOTE
15-down – Lapse : REGRESS
16-down – Latin American ballroom dance : CHACHA
18-down – Head of a religious community : ABBOT
This crossword has in total 25 where 13 are across and 12 are down.