Steam bath or room (5)
I believe the answer is:
sauna
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">steam bath</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(sauna is a kind of steam bath)</span><br/ ><br/ >'<span class="explanation-format__original">room</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(sauna is a kind of room)</span><br/ ><br/ ></span>
(Other definitions for sauna that I've seen before include "Form of steam bath" , "Steam-heated room" , "Where one is sweaty" , "Type of bath" , "A Scandinavian steam bath" .)