Encapsulate problem at university (3,2)
I believe the answer is:
sum up
'encapsulate' is the definition.
(I've seen this in another clue)
'problem at university' is the wordplay.
'problem' becomes 'sum' (arithmetic problem).
'at university' becomes 'up' (slang term meaning at university).
'sum'+'up'='SUM UP'
(Other definitions for sum up that I've seen before include "Provide a synopsis" , "Review evidence at end of a case" , "What a judge may do" , "Conclude" , "Money more than before" .)