This crossword No. 12384 clues and answers were published on Tue 19 Jan 2010 and the puzzle can be visited by following The Guardian Quick Crossword No. 12384 link.
All Across Clues and Answers:
5-across – Psychic : CLAIRVOYANT
7-across – Shortly : SOON
8-across – Person with independent or unorthodox views : MAVERICK
9-across – Informed : AWAREOF
11-across – Shrewd : CANNY
13-across – Had forty winks : SLEPT
14-across – Try : ATTEMPT
16-across – Large lake on the Peru-Bolivia border : TITICACA
17-across – Arab sailing vessel : DHOW
18-across – Been on earth : NEARTHEBONE
All Down Clues and Answers:
1-down – Chessman : PAWN
2-down – Spiked attachment for climbing boot : CRAMPON
3-down – Loves : SOLVE
4-down – Legitimate target : FAIRGAME
5-down – : CROMWELLIAN
6-down – Someone not a fan of modern technology : TECHNOPHOBE
10-down – Act of retaliation : REPRISAL
12-down – Dry seat : STRAYED
15-down – Ballroom dance, originally from Germany : WALTZ
17-down – French couturier, d. 1957 : DIOR
This crossword has in total 20 where 10 are across and 10 are down.