Measure for Measure partly correct (6)
I believe the answer is:
reform
'correct' is the definition.
(thesaurus)
'measure for measure partly' is the wordplay.
'partly' indicates a hidden word (part of the clue is used).
'REFORM' can be found hidden inside 'measure for measure'.
(Other definitions for reform that I've seen before include "Show improvement" , "Correct(ion of) abuses" , "Removal of abuses" , "Mend one's ways" , "Go straight" .)