Musician performing stint with recital (12)
I believe the answer is:
clarinettist
'musician' is the definition.
(clarinettist is a kind of musician)
'performing stint with recital' is the wordplay.
'performing' is an anagram indicator.
'with' is a charade indicator (letters next to each other).
'stint'+'recital'='stintrecital'
'stintrecital' anagrammed gives 'CLARINETTIST'.
(Other definitions for clarinettist that I've seen before include "Musician, like Benny Goodman, say" , "Cats in litter (anag) -- woodwind player" .)