Being in control brother finds a burden (7)
I believe the answer is:
refrain
'a burden' is the definition.
(I've seen this before)
'being in control brother' is the wordplay.
'being in' is an insertion indicator.
'control' becomes 'rein' (synonyms).
'brother' becomes 'fra' (title for an Italian monk).
'rein' going around 'fra' is 'REFRAIN'.
'finds' is the link.
(Other definitions for refrain that I've seen before include "Lines repeated at the end of each verse" , "Do without" , "Stop oneself (from doing something)" , "Recurring music to forbear from" , "Main part of song - do not do it" .)