Maybe I was just on Philistine's wavelength, but I found this to be one of the easier Prize puzzles but I know these things are very subjective so I'll be interested to hear how others fared.
FOI (First One In) was 8a followed by 4d.
If you do get stuck there is at least one hidden in the acrosses and at least one initial letters in the downs.
The only real trouble I had was with 10a where I took a while to choose the correct first word and 16d where I couldn't, initially, see the definition and 13d where I had to choose between two possible endings.
19d and 23a both made me groan but they are pretty good clues:-)
Thanks to Philistine for a fun start to the weekend:-)
Let us know you got on and, as always, if you get stuck - don't hesitate to ask for a hint.
Stay safe:-)