This crossword No. 12526 clues and answers were published on Sat 03 Jul 2010 and the puzzle can be visited by following The Guardian Quick Crossword No. 12526 link.
All Across Clues and Answers:
1-across – Panda, maybe : PATROLCAR
8-across – Instruct — exercise : TRAIN
9-across – Pre-Raphaelite painter : MILLAIS
10-across – Pretty folded sheets for short messages : NOTELETS
11-across – Turkish officer : AGHA
13-across – Very long cold spell : ICEAGE
14-across – Hit hard : BASHED
16-across – Blood : GORE
17-across – Scientific investigation : RESEARCH
19-across – Wealthy : OPULENT
20-across – Immense expanse or quantity : OCEAN
21-across – No place to 4? : MIDSTREAM
All Down Clues and Answers:
1-down – Study of prison etc : PENOLOGY
2-down – Tries to persuade : TEMPTS
3-down – See 6 : ONLY
4-down – What one could do at a post house : CHANGEHORSES
5-down – Get up, military style : RISEANDSHINE
6-down – No seats left : STANDINGROOM
7-down – Area of conflict : BATTLEGROUND
12-down – Intestinal parasite : TAPEWORM
15-down – Water heater : KETTLE
18-down – Get together : MEET
This crossword has in total 22 where 12 are across and 10 are down.