This crossword No. 430 clues and answers were published on Sun 14 Dec 2003 and the puzzle can be visited by following The Guardian Speedy Crossword No. 430 link.
All Across Clues and Answers:
1-across – Postpone : SETTOONESIDE
9-across – Temerity : NERVE
10-across – Flat limb on aquatic animals : FLIPPER
11-across – Affectedly highbrow : ARTY
12-across – Seal with a sunken design : INTAGLIO
14-across – Northern ocean : ARCTIC
15-across – Charge with a gas : AERATE
18-across – Selecting from various styles : ECLECTIC
20-across – Volume : BOOK
22-across – Gradient : INCLINE
23-across – Physical balance : POISE
24-across – In a state of agitation : ALLOFADITHER
All Down Clues and Answers:
2-down – Capricious : ERRATIC
3-down – Row : TIER
4-down – Be disagreeable to : OFFEND
5-down – United Arab ——-, Gulf state : EMIRATES
6-down – Force into motion : IMPEL
7-down – Be worth the time and money invested in you : EARNONESKEEP
8-down – Tolstoy novel : ANNAKARENINA
13-down – Devilment : MISCHIEF
16-down – Suffer : AGONISE
17-down – Connecting rod’s larger extremity : BIGEND
19-down – Parish pump : LOCAL
21-down – Coastal feature, tongue of sand : SPIT
This crossword has in total 24 where 12 are across and 12 are down.