Installed as carpet (4)
I believe the answer is:
laid
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">installed as carpet</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for laid that I've seen before include "Produced (an egg)" , "Produced eggs" , "settled" , "Doze" , "Put down like dial" .)