Heavy curtains (6)
I believe the answer is:
drapes
'heavy curtains' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for drapes that I've seen before include "Hangs (cloth) loosely" , "screens in Windows" , "Long curtains" , "Curtains for padres" , "Spread like curtains" .)