It seems that Eimi wants to make a point to all us pedants who endlessly carp on about less than 50% checking: more than 57% of the answers are of this type, which is clearly of no concern to him.
Two other things struck me about this offering from Eimi: the apparently large number of full anagrams (seven I think), and what Brian Greer once referred to in his excellent crossword articles in the Times of the late 90s as something whose exact name I can’t remember, but it was typically apposite and referred to anagrams which hit you in the face and can be nothing but anagrams (‘Paint Lucy’, ‘Canopus’, ‘Dench loafs’). Which is not to say that I found it easy: as you’d expect Eimi has included various references to a world that is less well-known to me than to him, and occasionally some rather good clues (I’d have liked the RSC one if it had been printed properly).