Implement silent reform after university (7)
I believe the answer is:
utensil
'implement' is the definition.
(utensil is a kind of implement)
'silent reform after university' is the wordplay.
'reform' indicates anagramming the letters.
'after' is a charade indicator (letters next to each other).
'university' becomes 'u' (**).
'silent' anagrammed gives 'tensil'.
'tensil' put after 'u' is 'UTENSIL'.
(Other definitions for utensil that I've seen before include "E.g. colander" , "Implement for practical use" , "Let us in (anag) -- implement" , "Handy kitchen tool" , "Gadget" .)