This crossword No. 15201 clues and answers were published on Sat 26 Jan 2019 and the puzzle can be visited by following The Guardian Quick Crossword No. 15201 link.
All Across Clues and Answers:
1-across – Strip of land with water on both sides : ISTHMUS
8-across – French castle : CHATEAU
9-across – Isolated — urinals : INSULAR
10-across – Gases ejected from an engine : EXHAUST
11-across – Rapacious desire : GREED
13-across – Completely full : JAMPACKED
15-across – Person compelled to work for pay in order to survive : WAGESLAVE
18-across – One with very long sentence : LIFER
21-across – Smallest amount : MINIMUM
22-across – First : INITIAL
23-across – Set up : ARRANGE
24-across – Effect where combined actions produce a greater effect than the sum of individual efforts : SYNERGY
All Down Clues and Answers:
1-down – Cake topping : ICING
2-down – Savour : TASTE
3-down – Inability to cope with a normal environment : MALADJUSTMENT
4-down – Person who seems extremely funny? : SCREAM
5-down – Cunning and unscrupulous : MACHIAVELLIAN
6-down – Show to be false : DEBUNK
7-down – Reduced to a shell : GUTTED
12-down – Asian prince or king : RAJA
14-down – Effortlessness : EASE
15-down – Marsupial of Oz : WOMBAT
16-down – Bridge-like overhead structure : GANTRY
17-down – Hosts : ARMIES
19-down – Religious order member : FRIAR
20-down – Race with baton changes : RELAY
This crossword has in total 26 where 12 are across and 14 are down.