Thanks to Fed for what I thought was a difficult Prize.
I did notice 15a ilippu and, I could be wrong on this, but isn't situated in in pretty much the same place in the grid?
The only clue I have a slight issue with is 8d: If the definition is "stays" then why is "in" there? Howevr, if it's "stays in" then that just seems wrong to me - I mean, try finding a sentence where you can substitute "stays in" with trhe answer. (I know I've set myself up for a fall here but, whatever 😒)
On the plus side, the misdirection in 17d, and especially in 18d, was truly inspired.
25d is, to put it mildly, something of an old chestnut, but that's no bad thing and, of course, we have to remember that not everyone has been doing crosswords for years and those people will enjoy seeing it for the first time.
COD: Really liked 24a, 4d and 7d but think I'll go for 20d for its wonderful surface.
Let us know your thoughts Did you find it as difficult as me or was I just not on Fed's wavelength?
Stay safe:-)