Authority of bishop, perhaps, over see (7)
I believe the answer is:
mandate
'authority' is the definition.
(thesaurus)
'bishop perhaps over see' is the wordplay.
'bishop perhaps' becomes 'man' (bishop is a kind of man).
'over' is a charade indicator (letters next to each other).
'see' becomes 'date' ('date' can be a synonym of 'see'**).
'man'+'date'='MANDATE'
'of' acts as a link.
(Other definitions for mandate that I've seen before include "Official order or commission to do something" , "Social appointment for male - or authority given" , "Authority to do something" , "Give authority to" , "Authority for action" .)