Hide trial as a recorded audition (6,4)
I believe the answer is:
screen test
'a recorded audition' is the definition.
'screen test' can be an answer for 'audition' (screen test is a kind of audition). I'm not sure about the 'a recorded' bit.
'hide trial' is the wordplay.
'hide' becomes 'screen' (I've seen this in another clue).
'trial' becomes 'test' (synonyms).
'screen'+'test'='SCREEN-TEST'
'as' acts as a link.
Can you help me to learn more?
(Other definitions for screen test that I've seen before include "Film audition" , "trial for players" , "Film actor trial" , "in which player is evaluated" , "What might precede filming" .)