A whelp (3)

I believe the answer is:
pup
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">a whelp</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 pup that I've seen before include "Small palindromic dog" , "Young of canines" , "Young animal" , "Produce litter" , "Youngster" .)