Embellishment (7)
I believe the answer is:
garnish
'embellishment' is the definition.
(garnish is a kind of embellishment)
This is all the clue.
(Other definitions for garnish that I've seen before include "Embellish food" , "It's added to a dish for flavour or decoration" , "Sharing (anag) - dress" , "Add a trimming to a dish" , "Adornment" .)