Fresh trial about university ceremony (6)
I believe the answer is:
ritual
'ceremony' is the definition.
(I've seen this in other clues)
'fresh trial about university' is the wordplay.
'fresh' is an anagram indicator (a fresh re-ordering of the letters).
'about' indicates putting letters inside.
'university' becomes 'U' (abbreviation for university).
'trial' with letters rearranged gives 'rital'.
'rital' placed around 'u' is 'RITUAL'.
(Other definitions for ritual that I've seen before include "Oft-repeated series of actions" , "Ceremony or protocol" , "Ceremony, regular procedure" , "Codified ceremony" , "Ceremony following a prescribed order" .)