Revamped plainer confectionery (7)
I believe the answer is:
praline
'confectionery' is the definition.
(I know that praline is a type of confectionery)
'revamped plainer' is the wordplay.
'revamped' indicates an anagram.
'plainer' anagrammed gives 'PRALINE'.
(Other definitions for praline that I've seen before include "Smooth, nutty substance for filling chocolates" , "Smooth nut filling" , "Plainer (anag.)" , "Sugared almond" , "confectionery" .)