Troglodyte's home (4)
I believe the answer is:
cave
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">troglodyte's home</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 cave that I've seen before include "Hollow - warning" , "Warning - grotto" , "Underground enclosure with surface access" , "Hollow in a rock" , "Primitive dwelling" .)