Room for lounging (3)
I believe the answer is:
den
'room for lounging' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for den that I've seen before include "Animals' shelter" , "Animal's lair or gent's study" , "Wild animal's lair" , "Hidden lair of an animal" , "Animal's lair or man's study" .)