This crossword No. 12588 clues and answers were published on Tue 14 Sep 2010 and the puzzle can be visited by following The Guardian Quick Crossword No. 12588 link.
All Across Clues and Answers:
1-across – Stirring up trouble : RABBLEROUSING
8-across – Encountered : MET
9-across – Island of New York — cocktail : MANHATTAN
10-across – Creative skill : ARTISTRY
11-across – Ill-starred Hardy heroine : TESS
13-across – Keep out of sight : LIELOW
14-across – Wealth : RICHES
16-across – Savage : MAUL
17-across – Got hold of : PROCURED
20-across – Turkish peninsula — scene of WWI campaign : GALLIPOLI
21-across – Managed : RAN
22-across – Vacillate : SITONTHEFENCE
All Down Clues and Answers:
1-down – Umbra : RUMBA
2-down – Face the music : BITETHEBULLET
3-down – Oil slams : LIMASSOL
4-down – Cease to flow : RUNDRY
5-down – The Beehive State : UTAH
6-down – Over a brief period of time : INTHESHORTRUN
7-down – First book of the Bible : GENESIS
12-down – Devilment : MISCHIEF
13-down – French city known for its porcelain : LIMOGES
15-down – Ornament worn fastened to clothing : BROOCH
18-down – Proverbially slow learner : DUNCE
19-down – Someone from Helsinki? : FINN
This crossword has in total 24 where 12 are across and 12 are down.