Throw up Liverpudlian stew (9)
I believe the answer is:
lobscouse
'stew' is the definition.
(lobscouse is a kind of stew)
'throw up liverpudlian' is the wordplay.
'throw up' becomes 'lob' (I've seen this before).
'liverpudlian' becomes 'scouse' (I've seen this before).
'lob'+'scouse'='LOBSCOUSE'
(Other definitions for lobscouse that I've seen before include "sailor's dish" , "Stew associated with Liverpudlians" .)