Return theatre subsidy as a way to contain waste (6)
I believe the answer is:
diaper
'a way to contain waste' is the definition.
I can't tell whether this definition defines the answer.
'return theatre subsidy' is the wordplay.
'return' says the letters should be written backwards.
'theatre' becomes 'rep' (repertory theatre).
'subsidy' becomes 'aid' (I've seen this in another clue).
'rep'+'aid'='repaid'
'repaid' backwards is 'DIAPER'.
'as' acts as a link.
Can you help me to learn more?
(Other definitions for diaper that I've seen before include "type of paving" , "Baby's nappy" , "An American nappy" .)