Hide away from cold and pain (5)
I believe the answer is:
cache
'hide away' is the definition.
(thesaurus)
'cold and pain' is the wordplay.
'cold' becomes 'c' (eg on taps).
'and' is a charade indicator (letters next to each other).
'pain' becomes 'ache' (ache is a kind of pain).
'c'+'ache'='CACHE'
'from' is the link.
(Other definitions for cache that I've seen before include "Hidden storage space" , "Collection of hidden things" , "Put away" , "Hiding place for treasure etc" , "Secret source" .)