This crossword No. 12619 clues and answers were published on Wed 20 Oct 2010 and the puzzle can be visited by following The Guardian Quick Crossword No. 12619 link.
All Across Clues and Answers:
5-across – Hairy spider : TARANTULA
8-across – Provoke : GOAD
9-across – Beetle whose wingless females are partly luminous : GLOWWORM
10-across – Loan shark? : USURER
11-across – Digits : THUMBS
13-across – Self-possession : APLOMB
15-across – Application to a bad purpose : MISUSE
16-across – Very long run : MARATHON
18-across – Sob childishly : BLUB
19-across – Childish : INFANTILE
All Down Clues and Answers:
1-down – Indulge : PANDERTO
2-down – Nocturnal black and white animal : BADGER
3-down – Top whack! : ATMOST
4-down – Scratch — scrape : CLAW
6-down – Boisterous antics : HORSEPLAY
7-down – Posture in ballet : ARABESQUE
12-down – Obvious : UNSUBTLE
14-down – Knock one’s block off! : BEHEAD
15-down – Little — bit of time : MINUTE
17-down – Blood relative : AUNT
This crossword has in total 20 where 10 are across and 10 are down.