European staff and fellow in a row (10)
I believe the answer is:
macedonian
'european' is the definition.
(I know that Macedonian is a type of european)
'staff and fellow in a row' is the wordplay.
'staff' becomes 'mace' (a mace is a ceremonial staff or stick).
'and' is a charade indicator (letters next to each other).
'fellow' becomes 'don' (both can mean an academic).
'row' indicates anagramming the letters.
'in'+'a'='ina'
'ina' is an anagram of 'ian'.
'mace'+'don'+'ian'='MACEDONIAN'
(Other definitions for macedonian that I've seen before include "European language" , "East European" .)