This crossword No. 11946 clues and answers were published on Thu 21 Aug 2008 and the puzzle can be visited by following The Guardian Quick Crossword No. 11946 link.
All Across Clues and Answers:
1-across – One who deals in hardware : IRONMONGER
7-across – Plot for fruit trees : ORCHARD
8-across – Elevate : RAISE
10-across – Foam of breaking waves : SURF
11-across – Element whose compounds are often used in toothpaste : FLUORINE
13-across – Packing piece used as seal in metal joint : GASKET
15-across – Straight – guide : DIRECT
17-across – Killer of prominent figure : ASSASSIN
18-across – Mark – cliff : SCAR
21-across – Control and steer vehicle : DRIVE
22-across – Person engaged in learning : STUDENT
23-across – Disagreeable : UNPLEASANT
All Down Clues and Answers:
1-down – Bring upon oneself : INCUR
2-down – Egg-shaped : OVAL
3-down – Centre : MIDDLE
4-down – : NARCOTIC
5-down – Large building : EDIFICE
6-down – Maritime force for defence, rescue, prevention of smuggling etc : COASTGUARD
9-down – All those qualified to vote : ELECTORATE
12-down – Hard remains of marine mollusc : SEASHELL
14-down – Period of business for official body : SESSION
16-down – Afternoon nap : SIESTA
19-down – Defraud : CHEAT
20-down – Cougar : PUMA
This crossword has in total 24 where 12 are across and 12 are down.