University no place for one free of attachment (5)
I believe the answer is:
unpeg
'free of attachment' is the definition.
(to unpeg something is to free it of attachment)
'university no place for one' is the wordplay.
'university' becomes 'u'.
'no place' becomes 'np' ('no place of publication' in academic references).
'for one' becomes 'eg' (I've seen this in other clues).
'u'+'np'+'eg'='UNPEG'
(Other definitions for unpeg that I've seen before include "Detach" , "no longer freeze" , "Remove (clothes from a washing line)" , "free" , "Take down from the line" .)