Gentle animal (4)
(Other definitions for deer that I've seen before include "Hoofed mammal" , "Ruminant(s) -- breed of 13 down" , "The males have antlers" , "Wild animal" , "The - Hunter, 1978 film" .)
(Other definitions for doe that I've seen before include "Ode to a female rabbit" , "Female hare" , "partner for a buck" , "Last FA Cup winners" , "Buck's mate" .)