Produced servant, we hear (4)
I believe the answer is:
made
'produced' is the definition.
('make' can be a synonym of 'produce')
'servant we hear' is the wordplay.
'servant' becomes 'maid' (maid is a kind of servant).
'we hear' indicates a 'sounds like' (homophone) clue.
'maid' sounds like 'MADE'.
(Other definitions for made that I've seen before include "Built" , "Created" , "Produced" , "Forced" , "Constructed" .)