Room under the roof (5)
I believe the answer is:
attic
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">room under the roof</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 attic that I've seen before include "Top storey" , "Athenian Greek" , "Ancient Greek dialect - top room" , "Area at the top of the house" , "Dusty room" .)