Enjoy with gusto (6)
I believe the answer is:
relish
'enjoy with gusto' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for relish that I've seen before include "Gusto" , "Savour and enjoy food." , "what goes on food" , "Much enjoy" , "Savour; chutney" .)