Nearly done. Working until 4am, so brain is on a go slow today, but I do like Paul's clues (I know not everyone would agree).
Stuck on 22ac: Two locos - make sure the little one's going in the right place (5-5)
_O_T_ - T_R_N
Assuming I have 19d right of course. Can't entirely parse that one
Clues gratefully received