Not appropriate one should have dozed at audition (5)
I believe the answer is:
inapt
'not appropriate' is the definition.
(I've seen this before)
I don't understand the remainder of the clue.
(Other definitions for inapt that I've seen before include "not fit for purpose" , "Unsuitable - paint (anag)" , "Out of place" , "unqualified" , "Inappropriate" .)