Is there an error in 1ac? I have a full grid otherwise, and suspect I have the answer to it but the suggested anagram contains one 'O' too few and one 'E' too many!
Last three.......5d. Skunks, first to avoid tax set up (5) ATO-S.
31a. Dreamy talk? Some of it is due to a drug (6) AM-TA-.
34a. Edible substance consumed by traveller perhaps (4) LE-P.