Last week’s solution

Across: 6 Tedious; 7 Regal; 9 Graft; 10 Promise; 12 Alternative; 14 Dishevelled; 18 Custody; 19 Brook; 21 Steep; 22 Flicker. Down: 1 Yearn; 2 Wilful; 3 Jug; 4 Hermit; 5 Massive; 8 Crinkle; 11 Pervade; 13 Situate; 15 Hatred; 16 Enrich; 17 Sober; 20 Elf.