SOLUTION TO PRIZE CROSSWORD No 15,661:

ACROSS: 6 Impressionable. 9 Vienna. 10 Lavatory. 11 Agnostic. 13 Neaten. 15 Unused. 17 Tycoon. 19 Abject. 20 Unbiased. 22 Kangaroo. 24 Thirty. 26 Adult education. DOWN: 1 Airing cupboard. 2 Spin. 3 Depart. 4 Solvency. 5 Pact. 7 Splice. 8 Large intestine. 12 Ovule. 14 Aroma. 16 Eateries. 18 Sudoku. 21 Betray. 23 Golf. 25 Ibis.