I'm getting publicity as a charlatan (8)
I believe the answer is:
imposter
'a charlatan' is the definition.
(I've seen this before)
'i'm getting publicity' is the wordplay.
'getting' means one lot of letters go next to another.
'publicity' becomes 'poster' (type of advertisement).
'im'+'poster'='IMPOSTER'
'as' acts as a link.
(Other definitions for imposter that I've seen before include "One assuming a false identity" , "con man" , "Pretender, fake" , "Charlatan" , "One who pretends to be another" .)