Liquid lunch? Ugly lawman tipsy with it (12)
I believe the answer is:
mulligatawny
'liquid lunch?' is the definition.
(mulligatawny is a soup)
'ugly lawman tipsy with it' is the wordplay.
'tipsy with' is an anagram indicator.
'ugly'+'lawman'='uglylawman'
'uglylawman' mixed up with 'it' makes 'MULLIGATAWNY'.
(Other definitions for mulligatawny that I've seen before include "One type of soup" , "Indian soup" , "Curried soup" , "Spicy meat soup, originally from India" , "Curry flavoured soup" .)