Hungry; greedy (8)
I believe the answer is:
esurient
This clue is a double definition.
'hungry' is the first definition.
(similar in meaning)
'greedy' is the second definition.
(I know that greedy can be written as esurient)
(Other definitions for esurient that I've seen before include "Hungry; retinues (anag.)" , "Rapacious" , "Greedy; ensure it (anag.)" , "Hungry, greedy" , "could eat a horse" .)