To do so gets Alfie no end upset! (4)
I believe the answer is:
fail
'to do so' is the definition.
I can't judge whether this defines the answer.
'alfie no end upset' is the wordplay.
'no end' means to remove the last letter.
'upset' indicates an anagram.
'alfie' with its last letter taken away is 'alfi'.
'alfi' with letters rearranged gives 'FAIL'.
'gets' is the link.
Can you help me to learn more?
(Other definitions for fail that I've seen before include "Run out; flop" , "Don't succeed" , "Break down" , "Be unable to achieve one's object" , "Fall short" .)