This crossword No. 13799 clues and answers were published on Thu 31 Jul 2014 and the puzzle can be visited by following The Guardian Quick Crossword No. 13799 link.
All Across Clues and Answers:
1-across – Hyphen — sprint : DASH
3-across – Gorbachev’s policy of openness : GLASNOST
8-across – Mild oath — aged : EGAD
9-across – Group of countries using a common currency : EUROZONE
11-across – One dropping off : SLEEPYHEAD
14-across – : GRANNY
15-across – Evening do : SOIREE
17-across – Absorb : ASSIMILATE
20-across – : HAUSFRAU
21-across – Go away! : SHOO
22-across – Temper tantrum : HISSYFIT
23-across – Academic : PROF
All Down Clues and Answers:
1-down – Equestrian discipline : DRESSAGE
2-down – The long key : SPACEBAR
4-down – Jokes : LAUGHS
5-down – Compulsive buyer : SHOPAHOLIC
6-down – Double-reed instrument : OBOE
7-down – Root-and-branch plant? : TREE
10-down – Beetle — aphrodisiac : SPANISHFLY
12-down – Gospeller : PREACHER
13-down – Person who becomes a monster when the moon is full : WEREWOLF
16-down – Festival of lights : DIWALI
18-down – Old Middle Eastern ruler : SHAH
19-down – Moggie : PUSS
This crossword has in total 24 where 12 are across and 12 are down.