This crossword No. 12335 clues and answers were published on Fri 20 Nov 2009 and the puzzle can be visited by following The Guardian Quick Crossword No. 12335 link.
All Across Clues and Answers:
1-across – Performance confined to a single evening : ONENIGHTSTAND
8-across – Fool : MUG
9-across – Improvised : IMPROMPTU
10-across – Intensify : HEIGHTEN
11-across – Round seed capsule, as in cotton : BOLL
13-across – Angora : MOHAIR
14-across – Negligent : REMISS
16-across – 1987 Best Actress Oscar winner for Moonstruck : CHER
17-across – Best bib and tucker : GLADRAGS
20-across – Partial correspondence : ASSONANCE
21-across – Cubes in a drink : ICE
22-across – Political fanatics : LUNATICFRINGE
All Down Clues and Answers:
1-down – Get-up-and-go : OOMPH
2-down – Language class for foreigners? : ENGLISHLESSON
3-down – Dance in Limerick? : IRISHJIG
4-down – Container carrying seed for sowing : HOPPER
5-down – Betray — purchase : SHOP
6-down – Likeness — guess : APPROXIMATION
7-down – See 13 : DOUGLAS
12-down – Hat : HEADGEAR
13-down – 1987 Best Actor Oscar winner for Wall Street : MICHAEL
15-down – Medical centre : CLINIC
18-down – Landscape — tantrum : SCENE
19-down – Small bloodsucker : GNAT
This crossword has in total 24 where 12 are across and 12 are down.