This crossword No. 11999 clues and answers were published on Wed 22 Oct 2008 and the puzzle can be visited by following The Guardian Quick Crossword No. 11999 link.
All Across Clues and Answers:
1-across – Relating separately to each individual : RESPECTIVE
7-across – Delicate ornamental metal work in gold or silver : FILIGREE
8-across – Empty space : VOID
9-across – Fizzy drink – chemical compound : SODA
10-across – Fish, often smoked : HADDOCK
12-across – Past it : OVERTHEHILL
14-across – Sink ship deliberately : SCUPPER
16-across – Corrosive substance : ACID
19-across – Fermented grape juice : WINE
20-across – Clearly shown or stated : EXPLICIT
21-across – At the stage between childhood and maturity : ADOLESCENT
All Down Clues and Answers:
1-down – Derelict remains of building : RUINS
2-down – Con : SWINDLE
3-down – Deserve : EARN
4-down – One who’s 13 to 19 : TEENAGER
5-down – Intense : VIVID
6-down – Relating to revenue : FISCAL
11-down – Very delicate – tale here : ETHEREAL
12-down – Prized flower : ORCHID
13-down – Slope : INCLINE
15-down – Implore : PLEAD
17-down – Go with the flow : DRIFT
18-down – Musical work : OPUS
This crossword has in total 23 where 11 are across and 12 are down.