Great enjoyment; pickle (6)
I believe the answer is:
relish
I believe this clue is a double definition.
'great enjoyment' is the first definition.
(I've seen this before)
'pickle' is the second definition.
(I've seen this before)
(Other definitions for relish that I've seen before include "what goes on food" , "love" , "fancy" , "Gusto" , "Spicy or savoury condiment" .)