Azed No. 2,648 Plain

Across 1 Banter alongside pig’s carcase, something used in preparing fodder (11) 11 Approach nurse about place of higher education (5) 12 Toxic substance from timber, mostly sandarac, brought westwards (7) 13 Genetic sequence, inflexible, not shortened inside (6) 15 Smallest part of gene that can change back insect’s dorsal surface (5) 16 Like a type of butterfly that is clear within wood (9) 17 US sub a bog scuppered within hellish depths (7) 21 It’s describing e.g. reasoning aright about what’ll make harp go wrong (13) 24 Church shelf to let, not new (7) 26 Least favourable wear Scots disposed of (9) 29 Source of many good tunes playwright takes to heart? (5) 30 Pennon’s opening working guard’s about to hoist (6) 31 Uniform stupid fellow reversed in behind (7) 32 Old avenue I omitted in excursion that’s over (5) 33 US highways a tree’s tints dappled (11) Down 1 What’ll give computer buyer a sneak preview? A crew’s deployed to limit fret (11) 2 Beefcake identifying aim in Hollywood? (4) 3 One touch that helps to counter gravity’s effects (5) 4 Feature of steam loco to repair, bore when going wrong inside (7) 5 Symbol first to last displaying parts of ventricle (4) 6 Top wore out in part of breakdown kit (7, 2 words) 7 Medicine acceptable for interrupting spasm? (5) 8 Allowance rarely in dotage a don’s forgone? (5) 9 Principal left to do up around course (7) 10 Vatican treasurers working longer put in some lead for stained-glass windows (11) 14 Containers for travel kit, dad’s, involving rising cost (7) 18 Product of bonding that could make one moonier (7) 19 Some monocotyledons, a group bordering river (7) 20 Intestinal parasites? Helper, fit, turning up with one inside (7) 22 After time millet will display such ear growths (5) 23 Wader? Tons may be seen in alluvial sediment (5) 25 Broken with run in spurt (5) 27 Chief points to suspect pocketing money (4) 28 Wicket once bagged by googly, a teaser (4) The Chambers Dictionary (2016) is recommended.