This crossword No. 10862 clues and answers were published on Mon 28 Feb 2005 and the puzzle can be visited by following The Guardian Quick Crossword No. 10862 link.
All Across Clues and Answers:
1-across – Destructive insect : LOCUST
4-across – River of southern England : THAMES
9-across – Weed dangerous to health : TOBACCO
10-across – Plastic records : VINYL
11-across – Slow-moving 12 : SNAIL
12-across – Shelled invertebrate : MOLLUSC
13-across – Town on Cardigan Bay : ABERYSTWYTH
18-across – Month : OCTOBER
20-across – Laconic : TERSE
22-across – American humorous writer : JAMES
23-across – See 22 : THURBER
24-across – Speak quietly and indistinctly : MUTTER
25-across – German POW camp : STALAG
All Down Clues and Answers:
1-down – Most recent : LATEST
2-down – Snake : COBRA
3-down – Not connected with religion : SECULAR
5-down – Dirty, neglected dwelling : HOVEL
6-down – Search for wanted person : MANHUNT
7-down – Unite : SPLICE
8-down – Express sympathy : COMMISERATE
14-down – It keeps moisture off the floor : BATHMAT
15-down – Garment worn by divers etc : WETSUIT
16-down – Deadlock : LOGJAM
17-down – It is offensive to a bull : REDRAG
19-down – Pour fat over : BASTE
21-down – Rise up : REBEL
This crossword has in total 26 where 13 are across and 13 are down.