SOLUTION TO PRIZE CROSSWORD No 15,356:

ACROSS: 6 Apprenticeship. 9 Trivia. 10 Confirms. 11 Germ cell. 13 Riding. 15 Pen pal. 17 Hoover. 19 Age-old. 20 Organism. 22 Potsherd. 24 Tiptoe. 26 As the crow flies. DOWN: 1 Carrier pigeons. 2 Spiv. 3 Menace. 4 Scenario. 5 Asti. 7 Tackle. 8 Immune response. 12 Mango. 14 Divan. 16 Audience. 18 Hoodoo. 21 Get off. 23 Soho. 25 Pain.