Refused stewed prunes and custard in the end (7)
I believe the answer is:
spurned
'refused' is the definition.
(spurning is a kind of refusing)
'stewed prunes and custard in the end' is the wordplay.
'stewed' is an anagram indicator.
'and' says to put letters next to each other.
'in the end' says to take the final letters.
The last letter of 'custard' is 'd'.
'prunes' with letters rearranged gives 'spurne'.
'spurne'+'d'='SPURNED'
(Other definitions for spurned that I've seen before include "treated with contempt?" , "Rejected scornfully, say a suitor" .)