Another excellent Prize fron the the ever reliable Brockwell.
In terms of difficulty I'd say it sits somewhere around the middle, but there are some obvious anagrams to get you going should you get stuck.
As per usual with Brockwell there is a theme, although in this instanc it may just be a partial one. That said, I am notoriously bad at spotting themes so no doubt other posters on here will be able to se the record straight.
FOI was 4d, merely because the anser jumped out at me.
There are still a couple I can't parse, namely 13a and 24d but I'll ponder on them some more over a coffee.
Thanks to Brockwell for a most enjoyable puzzle.
Let us know in the comments how you got on.
Stay safe:-)