Close-fitting (4)
I believe the answer is:
snug
'close-fitting' is the definition.
(I know that close-fitting can be written as snug)
This is the entire clue.
(Other definitions for snug that I've seen before include "Warm and cosy" , "Close-fitting and cosy" , "Small bar in pub - warm and comfortable" , "Close fitting but comfortable" , "Cosy retreat" .)