Serves up twirls from batter and vegetables (8)
I believe the answer is:
parsnips
'vegetables' is the definition.
(parsnip is a kind of vegetable)
'serves up twirls from' is the wordplay.
'serves up' is a reversal indicator.
'twirls' becomes 'spins' ('spin' can be a synonym of 'twirl').
'from' becomes 'rap' (I can't explain this - if you can you should believe this answer much more).
'spins'+'rap'='spinsrap'
'spinsrap' back-to-front is 'PARSNIPS'.
'batter and' is the link.
This may not be right. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for parsnips that I've seen before include "Veg" , "not enhanced by fine words?" , "part of the traditional 27 [DINNER]" , "food" , "Things growing in garden" .)