Loft room (5)
I believe the answer is:
attic
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">loft room</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 attic that I've seen before include "28 [GREEK]" , "Floor" , "room with lots of junk?" , "top-flight accommodation" , "High level of" .)