Actor’s audition (6,4)
I believe the answer is:
screen test
'actor's audition' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for screen test that I've seen before include "Film actor trial" , "What might precede filming" , "Film audition" , "in which player is evaluated" , "Audition of prospective actor" .)