Bear's lair (3)
I believe the answer is:
den
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bear's lair</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for den that I've seen before include "Animal lair or gent's study" , "Hideaway" , "Animal shelter" , "Home of the beast" , "Gentleman's study or animal's lair" .)