Innocent answer that provides flavour (8)
I believe the answer is:
angelica
'that provides flavour' is the definition.
'innocent answer' is the wordplay.
'innocent' becomes 'angelic' (I've seen this before).
'answer' becomes 'a' (abbreviation eg in Q and A).
'angelic'+'a'='ANGELICA'
(Other definitions for angelica that I've seen before include "What's good for decorating cakes" , "Its candied leaves are used in cake decoration" , "Herb" , "Candied stalk used in cake decoration" , "Girl" .)