Medicine man using fake article (6)
I believe the answer is:
shaman
'medicine man' is the definition.
(I've seen this before)
'fake article' is the wordplay.
'fake' becomes 'sham' (sham can mean fake or pretend).
'article' becomes 'an' (English indefinite article).
'sham'+'an'='SHAMAN'
'using' acts as a link.
(Other definitions for shaman that I've seen before include "Spirit guide" , "Indian priest" , "Asian doctor-priest" , "Spiritual healer" , "Man of spirit" .)