This crossword No. 12587 clues and answers were published on Mon 13 Sep 2010 and the puzzle can be visited by following The Guardian Quick Crossword No. 12587 link.
All Across Clues and Answers:
1-across – Critically ill : ATDEATHSDOOR
9-across – Easel : LEASE
10-across – Large bird : PELICAN
11-across – Profanity : OATH
12-across – Unable to discriminate between musical notes : TONEDEAF
14-across – Flatfish : TURBOT
15-across – Put a stop to — whisky : SCOTCH
18-across – Privileged — to be desired : ENVIABLE
20-across – Racket : SCAM
22-across – Bring to life : ANIMATE
23-across – Small medicine bottle : PHIAL
24-across – Lethargy : LISTLESSNESS
All Down Clues and Answers:
2-down – Person betraying a cause : TRAITOR
3-down – Smooth : EVEN
4-down – Walk stealthily : TIPTOE
5-down – Ability to pay all debts : SOLVENCY
6-down – Just at the right moment : ONCUE
7-down – Mediocre : RUNOFTHEMILL
8-down – Unnoticed observer : FLYONTHEWALL
13-down – Don’t mention it : NOTATALL
16-down – Actions planned to achieve an end : TACTICS
17-down – Gripping tool : PLIERS
19-down – Blood vessels : VEINS
21-down – Candid : OPEN
This crossword has in total 24 where 12 are across and 12 are down.