Contrives to produce injury we hear (5)
I believe the answer is:
brews
'contrives' is the definition.
The definition and answer can be both to do with creating things as well as being verbs in their -s form.
Perhaps they are linked in a way I don't understand?
'injury we hear' is the wordplay.
'injury' becomes 'bruise' (bruise is a kind of injury).
'we hear' shows a homophone (sound like).
'bruise' sounds like 'BREWS'.
'to produce' acts as a link.
Can you help me to learn more?
(Another definition for brews that I've seen is " Makes tea".)