This crossword No. 11527 clues and answers were published on Wed 18 Apr 2007 and the puzzle can be visited by following The Guardian Quick Crossword No. 11527 link.
All Across Clues and Answers:
1-across – Absurdly complicated in design : HEATHROBINSON
8-across – Go downhill : SKI
9-across – Collection of plates and dishes : DINNERSET
10-across – Stood under a spray of water : SHOWERED
11-across – Long motor : LIMO
13-across – Case for toppers : HATBOX
14-across – Short shrill sound : SQUEAK
16-across – Layer : TIER
17-across – Beaten soundly : THRASHED
20-across – Play the field : PHILANDER
21-across – Nature god : PAN
22-across – Male cops : THEBOYSINBLUE
All Down Clues and Answers:
1-down – Lengths of piping : HOSES
2-down – Mistress? : ABITONTHESIDE
3-down – Prickly animal : HHDGEHOG
4-down – Small units of weight : OUNCES
5-down – Notion : IDEA
6-down – Vatican location of Michelangelo frescoes : SISTINECHAPEL
7-down – Lattice : NETWORK
12-down – Air force unit : SQUADRON
13-down – Area of potential danger : HOTSPOT
15-down – Greek island : RHODES
18-down – School fool : DUNCE
19-down – Decorated lower part of an interior wall : DADO
This crossword has in total 24 where 12 are across and 12 are down.