Everyone at university about to appeal (6)
I believe the answer is:
allure
'to appeal' is the definition.
(I've seen this in another clue)
'everyone at university about' is the wordplay.
'everyone' becomes 'all' (all people).
'at' means one lot of letters go next to another.
'university about' becomes 'ure' (I've seen this in other clues).
'all'+'ure'='ALLURE'
(Other definitions for allure that I've seen before include "Power to attract by personal charm" , "Charm, magnetism" , "Entice; appeal" , "What siren may do" , "Powerful fascination" .)