Censoring device forced rebel to suppress past record (7)
I believe the answer is:
bleeper
'censoring device' is the definition.
(device used to bleep out certain words)
'forced rebel to suppress past record' is the wordplay.
'forced' indicates anagramming the letters.
'to suppress' is an insertion indicator.
'past record' becomes 'EP' (old-fashioned type of record).
'rebel' with letters rearranged gives 'bleer'.
'bleer' enclosing 'ep' is 'BLEEPER'.
(Other definitions for bleeper that I've seen before include "Electronic pager" , "Device to contact" , "Small portable radio receiver" , "Electronic alert device" , "comms device" .)