Didn't catch film using audio (6)
I believe the answer is:
missed
'didn't catch' is the definition.
(I've seen this before)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for missed that I've seen before include "Failed to perceive" , "Omitted" , "Didn't catch" , "Skipped" , "failed to see" .)