Poet university engaged in a study (5)
I believe the answer is:
auden
'poet' is the definition.
(Auden is an example)
'university engaged in a study' is the wordplay.
'university' becomes 'u'.
'engaged in' means one lot of letters goes inside another.
'study' becomes 'den' (I've seen this before).
'a'+'den'='aden'
'u' placed within 'aden' is 'AUDEN'.
(Other definitions for auden that I've seen before include "W. H. -, Eng. poet" , "W. H. - , UK/US poet" , "British-born American poet" , "Poet, associate of Spender and Isherwood" , "W.H. --, English poet" .)