List of chaps attending university (4)
I believe the answer is:
menu
'list' is the definition.
(menu is a kind of list)
'chaps attending university' is the wordplay.
'chaps' becomes 'men' (I've seen this before).
'attending' says to put letters next to each other.
'university' becomes 'u'.
'men'+'u'='MENU'
'of' acts as a link.
(Other definitions for menu that I've seen before include "that can appear on computer screen" , "List of dishes on offer" , "List of food items on offer" , "List of items available in restaurant (4)" , "List of items to choose from as in restaurant" .)