Name saint or pope? Brother no longer can (7)
I believe the answer is:
francis
'name' is the definition.
(man's name)
'brother no longer can' is the wordplay.
'brother' becomes 'Franciscan' (monk belonging to the order of St Francis).
'no longer' suggests deleting specific letters.
'franciscan' with 'can' taken out is 'FRANCIS'.
'saint or pope?' acts as a link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
(Other definitions for francis that I've seen before include "Pope" , "Man" , "Patron saint of animals" , "My Lady Poverty saint" , "English philosopher, d. 1626 -- Dublin-born painter, d. 1992" .)