LAST WEEK’S SOLUTION, No 1278:

ACROSS: 1 Highs 4 Nail-punch 9 Mousetrap 10 Inter 11 Beetle 12 Pear-tree 14 Cold chisel 16 Inca 19 Sate 20 Doctorship 22 Pickaxes 23 Sander 26 Unman 27 Extremist 28 Scroll-saw 29 Tills DOWN: 1 Humpbacks 2 Gouge 3 Sherlock 4 Norm 5 Implements 6 Pliers 7 Nut-wrench 8 Horse 13 Tin-openers 15 Latecomer 17 Apparatus 18 Ornament 21 Carnal 22 Plugs 24 Drill 25 Stew