Trojan horse
advertising writer
annalist
apostate
art critic
author
authoress
backslider
belletrist
bibliographer
bolter
coauthor
collaborationist
columnist
compiler
composer
convert
copywriter
creative writer
critic
crypto
dance critic
defector
deserter
diarist
drama critic
dramatist
encyclopedist
essayist
fellow traveler
fifth column
fifth columnist
fraternizer
free lance
free-lance writer
ghost
ghostwriter
humorist
inditer
literary artist
literary craftsman
literary critic
literary man
litterateur
logographer
magazine writer
man of letters
monographer
mugwump
music critic
accessary
accessory
traitor
treasonist
accomplice
adviser
ally
associate
backer
benefactor
biographer
co-workers
coadjutor
colleague
confidant
confidante
contributor
correspondent
girlfriend
hagel
helper
informant
lurker
mentor
sponsor
sympathizer