noun. One who writes for and gives credit of authorship to another.

noun. One who ghost-writes (a book, article, etc.) for someone else.

noun. A professional writer who is paid to write books, articles, stories, or reports which are officially credited to another person.

noun. a writer who gives the credit of authorship to someone else

"Ironically, the term in French for a ghostwriter is a “nègre littéraire (a literary Negro),” and ghostwriting is called “negritude.”"

ghost-writer  

author  writer  

anaesthetist  cataloguer  catechist  concept  dietician