Our bosses reviewed corruption within faction (7)
I believe the answer is:
editors
'our bosses' is the definition.
I can't tell whether this defines the answer.
'reviewed corruption within faction' is the wordplay.
'reviewed' shows that the letters should be reversed in order.
'corruption' becomes 'rot' (I've seen this before).
'within' is an insertion indicator.
'faction' becomes 'side' (I've seen this before).
'rot' put inside 'side' is 'srotide'.
'srotide' in reverse letter order is 'EDITORS'.
(Other definitions for editors that I've seen before include "Newspaper bosses" , "Employees on paper" , "Newspaper heads" , "Senior journalists" , "Press employees" .)