Execute bishop, second person snared by queen, maybe (5,3)
I believe the answer is:
carry out
'execute' is the definition.
(synonyms)
'bishop second person snared by queen maybe' is the wordplay.
'bishop' becomes 'rr' (abbreviation for Right Reverend).
'second person' becomes 'you' (second person pronoun).
'snared by' means one lot of letters goes inside another.
'queen maybe' becomes 'cat' (a female cat is a queen).
'rr'+'you'='rryou'
'rryou' placed within 'cat' is 'CARRY-OUT'.
(Other definitions for carry out that I've seen before include "Takeaway (Sc. & US)" , "Remove - execute" , "one can't stay for this meal" , "Take away" , "Realise" .)