Excess strife, worried about university (7)
I believe the answer is:
surfeit
'excess' is the definition.
('surfeit' can be a synonym of 'excess')
'strife worried about university' is the wordplay.
'worried' indicates an anagram.
'about' is an insertion indicator.
'university' becomes 'u'.
'strife' anagrammed gives 'srfeit'.
'srfeit' placed around 'u' is 'SURFEIT'.
(Other definitions for surfeit that I've seen before include "having had quite enough" , "it's more than one needs" , "Fustier (anag)" , "Overindulgence" , "excessive amount" .)