At university, sound like a lion in turmoil (6)
I believe the answer is:
uproar
'turmoil' is the definition.
(uproar is a kind of turmoil)
'at university sound like a lion' is the wordplay.
'at university' becomes 'up' (to 'come up' is to arrive for term, e.g. at Oxford).
'sound like a lion' becomes 'roar' (I've seen this in another clue).
'up'+'roar'='UPROAR'
'in' is the link.
(Other definitions for uproar that I've seen before include "Clamour" , "Violent eruption of noise and anger" , "Loud outcry" , "Tumult, chaos" , "Hoo-ha" .)