Begin playing hit at university (6,2)
I believe the answer is:
strike up
'begin playing' is the definition.
'strike up' can be an answer for 'begin' (I've seen this in another clue). I'm not certain of the 'playing' bit.
'hit at university' is the wordplay.
'hit' becomes 'strike' (synonyms).
'at university' becomes 'up' (slang term meaning at university).
'strike'+'up'='STRIKE-UP'
Can you help me to learn more?
(Other definitions for strike up that I've seen before include "Begin to play (a piece of music)" , "Start playing music - begin (acquaintance) - emboss" .)