Sent back theatre subsidy (6)
I believe the answer is:
repaid
'sent back' is the definition.
The definition and answer can be both to do with communicating as well as being past participle verbs.
Maybe they are linked in a way I don't understand?
'theatre subsidy' is the wordplay.
'theatre' becomes 'rep' (I've seen this before).
'subsidy' becomes 'aid' (I've seen this in another clue).
'rep'+'aid'='REPAID'
Can you help me to learn more?
(Other definitions for repaid that I've seen before include "Recompensed" , "Returned" , "Gave back money owed" , "no longer outstanding" , "Diaper (anag.)" .)