Scoundrel is hoping to hide enjoyment (6)
I believe the answer is:
relish
'enjoyment' is the definition.
(relish is a kind of enjoyment)
'scoundrel is hoping to hide' is the wordplay.
'to hide' indicates a hidden word.
'RELISH' is hidden within 'scoundrel is hoping'.
(Other definitions for relish that I've seen before include "Enjoy greatly - such sauce!" , "Enjoy the highly seasoned sauce" , "savoury stuff" , "appetizer?" , "Thoroughly enjoy" .)