Defile and eat! (5)
I believe the answer is:
gorge
This clue is a double definition.
'defile' is the first definition.
('gorge' can be a synonym of 'defile')
'eat' is the second definition.
(gorging is a kind of eating)
'and' acts as a link.
(Other definitions for gorge that I've seen before include "Devour" , "Deep valley" , "Overindulge" , "Chasm; overeat" , "Steep narrow ravine" .)