Some bad ideas successfully carried out (3)
I believe the answer is:
did
'carried out' is the definition.
(to do something is to carry out or execute it)
'some bad ideas successfully' is the wordplay.
'some' indicates a hidden word (some parts of the word are used).
'DID' is hidden within 'bad ideas successfully'.
(Other definitions for did that I've seen before include "Carried out an act" , "Achieved; cheated" , "Executed!" , "Accomplished" , "Swindled" .)