Endures frazzled consumer (3,4)
I believe the answer is:
end user
'consumer' is the definition.
(I know that end-user is a type of consumer)
'endures frazzled' is the wordplay.
'endures' can be anagrammed to 'END USER'.
But, I am not clear how the anagram is indicated.
Can you help me to learn more?
(Other definitions for end user that I've seen before include "Being last to receive goods" , "One showing ultimate possession" , "Person for whom a product is destined" , "Receiver of product" , "last link in the chain" .)