Envious (7)
I believe the answer is:
jealous
'envious' is the definition.
(I know that envious can be written as jealous)
This is the entire clue.
(Other definitions for jealous that I've seen before include "Showing envy" , "Envious, covetous" , "Envious of another" , "Resentful" , "Showing envious resentment" .)