Warm and comfortable (4)
I believe the answer is:
snug
'warm and comfortable' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for snug that I've seen before include "Comfy and cosy like bug in rug" , "Close fitting but comfortable" , "Warm and cosy" , "Cosy retreat" , "Bar-parlour" .)