This crossword No. 11458 clues and answers were published on Sat 27 Jan 2007 and the puzzle can be visited by following The Guardian Quick Crossword No. 11458 link.
All Across Clues and Answers:
1-across – Clarity – range of seeing : VISIBILITY
7-across – Seriousness : GRAVITAS
8-across – Stink : REEK
9-across – Become submerged : SINK
10-across – Ungainly : AWKWARD
12-across – Voyaging beyond earth’s atmosphere : SPACETRAVEL
14-across – Wreckage adrift at sea : FLOTSAM
16-across – Polluted mist : SMOG
19-across – Chew upon : GNAW
20-across – Sweet on stick : LOLLIPOP
21-across – Disreputable member of family or peer group : BLACKSHEEP
All Down Clues and Answers:
1-down – Microscopic entity capable of reproducing within cells : VIRUS
2-down – Tropical African grasslands : SAVANNA
3-down – The two : BOTH
4-down – Most up-to-date – final decision : LASTWORD
5-down – Toss : THROW
6-down – Fuel for road vehicles : PETROL
11-down – Of the nature of tin, iron, copper etc : METALLIC
12-down – Waterway between Hampshire and Isle of Wight : SOLENT
13-down – Blood-sucking ghoul : VAMPIRE
15-down – Absorbent drying cloth : TOWEL
17-down – Unit comprising several members : GROUP
18-down – Additional : PLUS
This crossword has in total 23 where 11 are across and 12 are down.