Maddened without company at university, but inspired (10)
I believe the answer is:
encouraged
'inspired' is the definition.
(encouraging is a kind of inspiring)
'maddened without company at university' is the wordplay.
'maddened' becomes 'enraged' (synonyms).
'without' means one lot of letters goes inside another ('without' can be similar in meaning to 'outside').
'company' becomes 'co' (abbreviation).
'at' says to put letters next to each other.
'university' becomes 'U' (abbreviation for university).
'co'+'u'='cou'
'enraged' going around 'cou' is 'ENCOURAGED'.
'but' acts as a link.
(Other definitions for encouraged that I've seen before include "Heartened" , "Urged" , "helped" , "Inspired with confidence" .)