This crossword No. 11785 clues and answers were published on Fri 15 Feb 2008 and the puzzle can be visited by following The Guardian Quick Crossword No. 11785 link.
All Across Clues and Answers:
1-across – Worthless enterprise : MUGSGAME
5-across – Prepare for publication : EDIT
9-across – Unfamiliar language : LINGO
10-across – French Channel port : LEHAVRE
11-across – Highly profitable enterprise : MONEYSPINNER
13-across – Keep : RETAIN
14-across – Person of exceptional ability : GENIUS
17-across – Expert marksman : SHARPSHOOTER
20-across – Most remote : EXTREME
21-across – Solemn – burial place : GRAVE
22-across – Spell – word : TERM
23-across – Vigorously emphatic : VEHEMENT
All Down Clues and Answers:
1-down – Temperate : MILD
2-down – Small armed vessel : GUNBOAT
3-down – Prickling of skin from cold, fear, etc : GOOSEPIMPLES
4-down – Maliciously interfere with : MOLEST
6-down – Backless couch : DIVAN
7-down – Speculate : THEORISE
8-down – Partly backed couch with one arm : CHAISELONGUE
12-down – Shape of moon in first or last quarter : CRESCENT
15-down – Repeat : ITERATE
16-down – Breathe with difficulty – gag : WHEEZE
18-down – Change : ALTER
19-down – Undershirt, singlet : VEST
This crossword has in total 24 where 12 are across and 12 are down.