Carnivore's diet (4)
I believe the answer is:
meat
'carnivore's diet' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for meat that I've seen before include "Ham, pork, chicken etc" , "Chops, steaks etc" , "17 [ESSENCE]" , "grub, say" , "Animal flesh as food" .)