SOLUTION TO PRIZE CROSSWORD No 15,868:

ACROSS: 1 Cranium. 5 Fluffy. 9 Seminal. 10 Ordinal. 11 Aid. 12 First person. 13 Emoji. 14 Primitive. 16 Coherence. 17 Elgar. 19 Battle royal. 22 Cue. 23 Lee side. 24 Adipose. 26 Shield. 27 Tumbler. DOWN: 1 Cascade. 2 Armed to the teeth. 3 Inn. 4 Molar. 5 Frostbite. 6 Undue. 7 Finishing school. 8 Flange. 12 Friar. 14 Pen friend. 15 Ideal. 16 Cobble. 18 Roe deer. 20 Loire. 21 Yeast. 25 Ism.