Part of theatrical production looked at on the radio (5)
I believe the answer is:
scene
'part of theatrical production' is the definition.
'scene' can be an answer for 'part' (I have seen 'Part of play ' mean 'scene' so perhaps 'part' could also mean 'scene'). I'm unsure of the 'of theatrical production' bit.
'looked at on the radio' is the wordplay.
'looked at' becomes 'seen' (I've seen this in another clue).
'on the radio' shows a homophone (sound like).
'seen' is a homophone of 'SCENE'.
Can you help me to learn more?
(Other definitions for scene that I've seen before include "Histrionic incident" , "Landscape - tantrum" , "Division of an act" , "site" , "View, sight" .)