Article supporting bogus priest (6)
I believe the answer is:
shaman
'priest' is the definition.
(shaman is a kind of priest)
'article supporting bogus' is the wordplay.
'article' becomes 'an' (indefinite article).
'supporting' says to put letters next to each other (in a down clue, some letters go below others).
'bogus' becomes 'sham' (I've seen this before).
'an' put after 'sham' is 'SHAMAN'.
(Other definitions for shaman that I've seen before include "Tribal medicine man" , "Spiritual healer" , "Indian priest" , "16 21 [INDIAN IMPORT]" , "Doctor-priest working by magic" .)