This crossword No. 15223 clues and answers were published on Thu 21 Feb 2019 and the puzzle can be visited by following The Guardian Quick Crossword No. 15223 link.
All Across Clues and Answers:
1-across – Duke of 21’s horse at Waterloo — capital city : COPENHAGEN
7-across – Parts of speech — poor nuns : PRONOUNS
8-across – Greek aniseed liqueur : OUZO
9-across – Arrangement for deferred payment : TICK
10-across – Unpaid debts : ARREARS
12-across – Capital city — uneasier sob : BUENOSAIRES
14-across – Interminable : ENDLESS
16-across – Habitual drunk : WINO
19-across – Bonce : HEAD
20-across – Extremely agitated — if recent : FRENETIC
21-across – Kind of boot : WELLINGTON
All Down Clues and Answers:
1-down – French landscape painter, d. 1875 : COROT
2-down – Flamboyant style : PANACHE
3-down – Common sense : NOUS
4-down – Hitler’s nationality pre-1925 : AUSTRIAN
5-down – Bring to mind : EVOKE
6-down – Portuguese North Atlantic islands : AZORES
11-down – Swollen-headed : BOASTFUL
12-down – Decrepit old car : BANGER
13-down – Minaret : RAIMENT
15-down – Provide accommodation for : LODGE
17-down – Pungent vegetable : ONION
18-down – Penny-pinching : MEAN
This crossword has in total 23 where 11 are across and 12 are down.