Cold comfort possibly found in end (5)
I believe the answer is:
cease
'end' is the definition.
(I know that end can be written as cease)
'cold comfort possibly' is the wordplay.
'cold' becomes 'c' (eg on taps).
'comfort possibly' becomes 'ease' (ease can mean comfort).
'c'+'ease'='CEASE'
'found in' is the link.
(Other definitions for cease that I've seen before include "Stop, terminate" , "Desist" , "Discontinue" , "Stop, give over" , "Stop, finish" .)