The most common and most likely answer to this crossword clue is the 6 letter word SHAMAN
I've seen this crossword clue in Financial Times
S
H
A
M
A
N
More clues leading to the result SHAMAN
- Magician? Not the real article
- Pretending to have support of a new religious figure
- Medicine man with counterfeit article
- Quiet guy fed by a witch doctor
- Healer put on a nightie for a start
- Healer with false alibi’s first name
- Central bank supporting false medicine man
- Article on fake witch doctor
- Quack gaining a name as bogus healer?
- Article on bogus witch doctor
Buddy explains!

The straight part
We know that "bogus healer" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case bogus healer = shaman.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does SHAMAN mean?
SHAMAN noun- A traditional (prescientific) faith healer.
- A member of certain tribal societies who acts as a religious medium between the concrete and spirit worlds.