House of ice (5)
I believe the answer is:
igloo
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">house of ice</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for igloo that I've seen before include "An eskimo's ice-house" , "Arctic home" , "Inuit dwelling" , "White House" , "series of chilly blocks" .)