Story of euphoria after the end of winter (8)
I believe the answer is:
relation
'story' is the definition.
(relation is a kind of story)
'euphoria after the end of winter' is the wordplay.
'euphoria' becomes 'elation' (I've seen this before).
'after' says to put letters next to each other.
'the end of' says to take the final letters.
The final letter of 'winter' is 'r'.
'elation' after 'r' is 'RELATION'.
'of' acts as a link.
(Other definitions for relation that I've seen before include "report" , "Person related by blood or marriage" , "Auntie?" , "wife?" , "Kinship; narrative" .)