I've all but filled the grid in this somewhat underwhelming crossword and would just like to put it to bed now (I never submit them). So nudges on the following would be much appreciated please.
4d - I have the first 4 letters and can see a word that would fit (not in Chambers) but can't justify it from the clue.
12d - I have the first 3 letters and think I know the full answer but, again, I can't justify it.
24a - I'm pretty sure that I know the answer. It fits with the first word of the clue but any connection to the second word is tenuous to say the least. Maybe I've got it wrong.
26d - unsolved
37a - unsolved
I know what sort of thing I'm looking for with the thematic group but, unless there's a big PDM heading my way, it's all a bit 'so what?'