Following article by Vogue to some degree, but not very well (5,1,7)
I believe the answer is:
after a fashion
'not very well' is the definition.
(synonyms)
'following article by vogue to some degree' is the wordplay.
I cannot quite see how this works, but
'following' could be 'after' (following can mean after or as a result of) and 'after' is found within the answer.
'article' could be 'a' (the indefinite article in English) and 'a' is found within the answer.
'vogue' could be 'fashion' (fashion is a kind of vogue) and 'fashion' is present in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'but' acts as a link.
Can you help me to learn more?
(Other definitions for after a fashion that I've seen before include "In a sort of way" , "Change" , "In some (unsatisfactory) manner" , "Not completely" , "like many boutique shoppers?" .)