Young lion (3)
I believe the answer is:
cub
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">young lion</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for cub that I've seen before include "Whelp" , "Baby animal, bear say" , "Young bear or lion" , "Young one" , "Young lion or fox" .)