Each can bring a yearning (4)
I believe the answer is:
ache
'a yearning' is the definition.
(I've seen this in another clue)
'each can' is the wordplay.
'can' indicates an anagram (I've seen 'canned' mean this (canned can mean drunk)).
'each' with letters rearranged gives 'ACHE'.
'bring' acts as a link.
(Other definitions for ache that I've seen before include "Dull throbbing pain" , "suffering" , "Cause pain" , "Continuous hurt" , "Pine" .)