Elk or caribou, eg (4)
I believe the answer is:
deer
This clue is a double definition.
'elk' is the first definition.
(I've seen this in another clue)
'caribou eg' is the second definition.
(caribou is a kind of deer)
(Other definitions for deer that I've seen before include "The - Hunter, 1978 film" , "The male has antlers" , "Hoofed mammal" , "Ruminant(s) -- breed of 13 down" , "Ruminant mammal with antlers and hooves" .)