Conclude university has been missed off a list (4)
I believe the answer is:
amen
'conclude' is the definition.
(amen is said to conclude a prayer)
'university has been missed off a list' is the wordplay.
'university' becomes 'u'.
'has been missed off' is a deletion indicator.
'list' becomes 'menu' (menu is a kind of list).
'a'+'menu'='amenu'
'amenu' with 'u' taken away is 'AMEN'.
(Other definitions for amen that I've seen before include "I agree!" , "Word at the end of a prayer" , "Name for prayer's end" , "So let it be" , "Put name to end of payer" .)