Small ungulate (3,4)
I believe the answer is:
roe deer
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">small ungulate</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for roe deer that I've seen before include "beast" , "Small hoofed animal from Eurasia" , "Hoofed animal(s)" , "Common wild animal" , "Small (antlered) mammal" .)