Asti on tap — novel provision for start of Italian meal (9)
I believe the answer is:
antipasto
'provision for start of italian meal' is the definition.
(type of Italian dish used as a starter)
'asti on tap novel' is the wordplay.
'novel' is an anagram indicator.
'asti'+'on'+'tap'='astiontap'
'astiontap' is an anagram of 'ANTIPASTO'.
(Other definitions for antipasto that I've seen before include "Italian hors d'oeuvres" , "garnish!" , "Italian food" , "Italian dish" , "dishes" .)