Melbourne Uni ratbags dressing smart (9)
I believe the answer is:
swinburne
'melbourne uni' is the definition.
The definition suggests a singular noun which matches the answer.
'ratbags dressing smart' is the wordplay.
'ratbags' becomes 'swine' (I am not sure about this - if you are sure you should believe this answer much more).
'dressing' means one lot of letters goes inside another (inserted letters are dressed or clad in others).
'smart' becomes 'burn' (burning is a kind of smarting).
'swine' going around 'burn' is 'SWINBURNE'.
Can you help me to learn more?
(Other definitions for swinburne that I've seen before include "Victorian poet" , "Rub in news (anag) - poet" , "Algernon --, English poet" .)