This crossword No. 899 clues and answers were published on Sun 16 Dec 2012 and the puzzle can be visited by following The Guardian Speedy Crossword No. 899 link.
All Across Clues and Answers:
1-across – Running smoothly : ONAN
3-across – See 1 : EVENKEEL
8-across – Commotion : TODO
9-across – Unselfish concern for others : ALTRUISM
11-across – Revivalist movement in art and architecture : NEOCLASSIC
14-across – An irrevocable step is taken : THEDIE
15-across – See 14 : ISCAST
17-across – Sensible and straightforward : NONONSENSE
20-across – Company representative : SALESMAN
21-across – Cheap showy jewellery or ornament on clothing : GAUD
22-across – Genuflecting : ONBENDED
23-across – See 22 : KNEE
All Down Clues and Answers:
1-down – Musical phrase repeated over and over : OSTINATO
2-down – Male hormone : ANDROGEN
4-down – Elvis A? : VALISE
5-down – Admiration for oneself : NARCISSISM
6-down – Arab chieftain : EMIR
7-down – Holy man in Tibet : LAMA
10-down – One from Chicago : ILLINOISAN
12-down – Keep in safety and protect from harm and decay : MAINTAIN
13-down – Person who is present at an event : ATTENDEE
16-down – Thick, often creamy soup : POTAGE
18-down – European capital, once Christiania : OSLO
19-down – Slovenly person : SLOB
This crossword has in total 24 where 12 are across and 12 are down.