From Longman Dictionary of Contemporary Englishghost writerˈghost ˌwriter noun [countable] BOTCNsomeone who is paid to write a book or story for another person, who then says it is their own work —ghost-write verb [transitive]
Examples from the Corpus
ghost writer• Mr Pincher, though, is only the ghost writer and it's Dido who's grabbing the headlines. 