Perpetrate, carry out (6)
I believe the answer is:
commit
I believe this clue is a double definition.
'perpetrate' is the first definition.
(synonyms)
'carry out' is the second definition.
(I've seen this before)
(Other definitions for commit that I've seen before include "Entrust; carry out" , "execute" , "Send for trial" , "Confine" , "Perform act or send to prison" .)