Reportedly censored group (4)
I believe the answer is:
band
'group' is the definition.
(band can mean a group of people)
'reportedly censored' is the wordplay.
'reportedly' shows a homophone (sound like).
'censored' becomes 'banned' ('ban' can be a synonym of 'censor').
'banned' is a homophone of 'BAND'.
(Other definitions for band that I've seen before include "company" , "Strip, belt; playing group" , "Group; frequency range" , "troop" , "Players" .)