First course like this at university (4)
I believe the answer is:
'first course' is the definition.
(I've seen this before)
'like this at university' is the wordplay.
'like this' becomes 'so' ('like so').
'at university' becomes 'up' (slang term meaning at university).
(Other definitions for soup that I've seen before include "Mulligatawny or borscht?" , "Eg, mulligatawny" , "First course" , "Cock-a-leekie, for example" , "Liquid dish" .)