This crossword No. 12405 clues and answers were published on Fri 12 Feb 2010 and the puzzle can be visited by following The Guardian Quick Crossword No. 12405 link.
All Across Clues and Answers:
1-across – Small oval seeds yielding an edible oil : SESAME
4-across – With alcohol added? : LACED
7-across – Stay : REMAIN
8-across – Fine worsted yarn : CREWEL
9-across – Against : ANTI
10-across – Red and black insect : LADYBIRD
12-across – Cosset : MOLLYCODDLE
17-across – Ornamental metallic lacework : FILIGREE
19-across – Run-down city area : SLUM
20-across – Upshot — what follows : SEQUEL
21-across – Sum : AMOUNT
22-across – Illegal act of taking : THEFT
23-across – Grammatical structure : SYNTAX
All Down Clues and Answers:
1-down – Chest bone : STERNUM
2-down – Breed of dog : SPANIEL
3-down – Ship putting down explosive devices : MINELAYER
4-down – Industrial vehicle : LORRY
5-down – Ranch lass? : COWGIRL
6-down – Deceive : DELUDE
11-down – Arabian camel with one hump : DROMEDARY
13-down – Slanted : OBLIQUE
14-down – Misrepresent : DISTORT
15-down – When day and night are equal : EQUINOX
16-down – Counterbalance : OFFSET
18-down – Chief — weighty : GREAT
This crossword has in total 25 where 13 are across and 12 are down.