Peel with relish (4)
I believe the answer is:
zest
This clue is a double definition.
'peel' is the first definition.
(I've seen this in another clue)
'relish' is the second definition.
(synonyms)
'with' acts as a link.
(Other definitions for zest that I've seen before include "Peel used as flavouring" , "Joie de vivre" , "added flavour" , "Relish - orange peel" , "Zing" .)