This crossword No. 12598 clues and answers were published on Sat 25 Sep 2010 and the puzzle can be visited by following The Guardian Quick Crossword No. 12598 link.
All Across Clues and Answers:
1-across – Colouring substances : DYESTUFFS
8-across – Pithy saying : MAXIM
9-across – Tearfully sentimental : MAUDLIN
10-across – Peace of mind : SERENITY
11-across – Resolve : WILL
13-across – Give guidance : ADVISE
14-across – Lowest of the low : BOTTOM
16-across – Lodgings : DIGS
17-across – Stringed instrument : MANDOLIN
19-across – Behave without restraint : RUNWILD
20-across – Needs : DENSE
21-across – Profanity : BLASPHEMY
All Down Clues and Answers:
1-down – Lessen : DIMINISH
2-down – Antagonism : ENMITY
3-down – Ruffian : THUG
4-down – Conform : FALLINTOLINE
5-down – Bent upon one sole purpose : SINGLEMINDED
6-down – Type of robbery : SMASHANDGRAB
7-down – Elaborately staged entertainment : EXTRAVAGANZA
12-down – In a dirty way : SORDIDLY
15-down – Waste time : DAWDLE
18-down – Drooping : LIMP
This crossword has in total 22 where 12 are across and 10 are down.