Antelopes (7)
I believe the answer is:
impalas
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">antelopes</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know this)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for impalas that I've seen before include "African antelope with ridged curved horns" , "Animals hunted by African" , "Animals jumping up" , "big game" , "African runners" .)