This crossword No. 768 clues and answers were published on Sun 06 Jun 2010 and the puzzle can be visited by following The Guardian Speedy Crossword No. 768 link.
All Across Clues and Answers:
7-across – Sumptuousness : OPULENCE
8-across – Volcanic flow : LAVA
9-across – Corium, the inner layer of skin : DERMA
10-across – Automaton that resembles a human being : ANDROID
12-across – Sea-borne missile : TORPEDO
14-across – Sailing or motor vessel for cruising or racing : YACHT
15-across – 28.3495 grammes : OUNCE
16-across – Gourmand : GLUTTON
17-across – Vacation : HOLIDAY
18-across – One of the two main branches of Islam : SHIAH
20-across – Large deer of Europe and N America : ELKS
21-across – Affected with emotional disorder : NEUROTIC
All Down Clues and Answers:
1-down – Smugly virtuous type : GOODYTWOSHOES
2-down – Engine sound : PURR
3-down – Small oval seeds baked into the crusts of bread or on buns : SESAMESEED
4-down – Eight leaves to a sheet : OCTAVO
5-down – Rout Czar? : RAZORCUT
6-down – Grossly exaggerated something : LAIDITONTHICK
11-down – Kindergarten : DAYNURSERY
13-down – Annular : RINGLIKE
16-down – Hot spring : GEYSER
19-down – Tiny or scarcely detectable amount : IOTA
This crossword has in total 22 where 12 are across and 10 are down.