This crossword No. 12574 clues and answers were published on Sat 28 Aug 2010 and the puzzle can be visited by following The Guardian Quick Crossword No. 12574 link.
All Across Clues and Answers:
1-across – Self-appointed chief of group : COCKOFTHEWALK
8-across – Hide : SKIN
9-across – Sac such as surrounds hair root : FOLLICLE
10-across – Protection for wall above basin : SPLASHBACK
12-across – Moist and sticky : CLAMMY
14-across – Ephemeral insect : MAYFLY
15-across – Freedom fighters — it’s measured in ohms : RESISTANCE
19-across – Disease caused by vitamin deficiency : BERIBERI
20-across – Belonging to us : OURS
21-across – Far-fetched speculation : FLIGHTOFFANCY
All Down Clues and Answers:
2-down – Gall on tree — day, 29 May : OAKAPPLE
3-down – East African country : KENYA
4-down – : FIFTHLY
5-down – Board game : HALMA
6-down – Irish or American liquor : WHISKEY
7-down – Lie sprawled : LOLL
11-down – Type of chair, hare, shock etc : ELECTRIC
13-down – First part of day : MORNING
14-down – Big dog : MASTIFF
16-down – Paid out — finished : SPENT
17-down – Hawaiian greeting : ALOHA
18-down – Healthy — water supply : WELL
This crossword has in total 22 where 10 are across and 12 are down.