Brother at college, one from Saint-Malo, perhaps (6)
I believe the answer is:
breton
'one from saint-malo perhaps' is the definition.
(Saint-Malo is a city in Brittany, France)
'brother at college' is the wordplay.
'brother' becomes 'br' (abbreviation in titles of monks).
'at' means one lot of letters go next to another.
'college' becomes 'eton' (Eton College, English private school).
'br'+'eton'='BRETON'
(Other definitions for breton that I've seen before include "Inhabitant of NW France" , "Cooked with cheese and/or breadcrumbs on top" , "French Celtic language" , "Frenchman" , "One from Brest" .)