THESAURUS
ghostwrite
act for, author, change places with, coauthor, collaborate, compose, crowd out, cut out, dash off, displace, double for, editorialize, fill in for, formulate, free-lance, ghost, indite, knock off, knock out, novelize, pamphleteer, pinch-hit, prepare, produce, relieve, replace, represent, scenarize, spell, spell off, spook, stand in for, subrogate, substitute for, succeed, supersede, supplant, swap places with, throw on paper, understudy for, write