Sun-dried brick (5)
I believe the answer is:
adobe
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sun-dried brick</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 adobe that I've seen before include "Sun-dried brick clay" , "Mexican mud and straw brick, and the hut made of it" , "Clay used for sun-dried bricks" , "Clay for mud bricks" , "house" .)