A buck or two? (4)
I believe the answer is:
deer
'a buck or two?' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for deer that I've seen before include "Red, roe or fallow" , "Ruminant(s) -- breed of 13 down" , "Ruminant mammal with antlers and hooves" , "Hoofed grazing animal" , "Hoofed animals" .)