Ways for an article to upset even us! (7)
I believe the answer is:
avenues
'ways' is the definition.
(avenue is a kind of way)
'an article to upset even us' is the wordplay.
'an article' becomes 'a' (English indefinite article).
'to upset' is an anagram indicator.
'even'+'us'='evenus'
'evenus' with letters rearranged gives 'venues'.
'a'+'venues'='AVENUES'
'for' is the link.
(Other definitions for avenues that I've seen before include "Approaches" , "City streets or methods of approach" , "Tree-lined roads" .)