Steamy room (5)
I believe the answer is:
sauna
'steamy room' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for sauna that I've seen before include "Steam-bath" , "Finnish steam bath" , "Steam-heated room" , "A Scandinavian steam bath" , "Very hot room for cleansing, of Finnish origin" .)