Control rebellious bosses (6)
I believe the answer is:
obsess
'control' is the definition.
(I've seen this before)
'rebellious bosses' is the wordplay.
'rebellious' is an anagram indicator.
'bosses' anagrammed gives 'OBSESS'.
(Other definitions for obsess that I've seen before include "Be constantly talking about" , "Preoccupy continually" , "Bosses (anag.)" , "Preoccupy completely" , "Plague" .)