Wrong RE student committed (9)
I believe the answer is:
entrusted
'committed' is the definition.
('entrust' can be a synonym of 'commit')
'wrong re student' is the wordplay.
'wrong' indicates anagramming the letters.
're'+'student'='restudent'
'restudent' is an anagram of 'ENTRUSTED'.
(Other definitions for entrusted that I've seen before include "committed" , "Gave responsibility to" , "Given for safekeeping" , "invested with responsibility" , "Placed (into someone's care)" .)