Medicine man apparently not the real article (6)
I believe the answer is:
shaman
'medicine man' is the definition.
(I've seen this before)
'apparently not the real article' is the wordplay.
I cannot quite see how this works, but
'article' could be 'an' (indefinite article) and 'an' is located in the answer.
The remaining letters 'sham' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for shaman that I've seen before include "who practises a form of spiritualism?" , "Medium between the visible and spirit worlds" , "Indian priest" , "Spirit guide" , "Asian doctor-priest" .)