Liberal whip goes about six (6)
I believe the answer is:
lavish
'liberal' is the definition.
(thesaurus)
'whip goes about six' is the wordplay.
'whip' becomes 'lash' (synonyms).
'goes about' is an insertion indicator.
'six' becomes 'VI' (Roman numerals).
'lash' going around 'vi' is 'LAVISH'.
(Other definitions for lavish that I've seen before include "Sumptuous" , "Squander" , "Plentiful, generous" , "Spend(ing) generously" , "Plentiful or munificent" .)