Finished, but with no pleasure. Too much reverse engineering to find words which might be fitted to the clues. My thanks to contributors for some of the parsings which were beyond me.
There's a couple of references here to a loose T in 17a but these are still too cryptic for me to work out the wordplay (assuming I've got the right answer of course). I also don't understand the R I have in 22a unless the 4 in the clue should be 5.