Answer:

POE

Answer	Crossword Clue
POE	"Ulalume" author
POE	"For Annie" penner
POE	"The Raven" penner

POE	Macabre writer
POE	Nineteenth century horror author
POE	Raven maven
POE	"The Raven" author
POE	"The Gold Bug" writer
POE	Author with a museum in Richmond, Virginia
POE	Author beloved by goths
POE	Author buried in Baltimore

POE	"Al Aaraaf" poet
POE	Macabre master
POE	Writer buried in Baltimore
POE	"Tamerlane" penner
POE	Usher's creator
POE	"The Bells" author
POE	"The Bells" writer
POE	Detective-story pioneer

POE	Laudanum-using writer
POE	Master of the macabre
POE	Dupin's creator
POE	Macabre author
POE	Poet, interrupted?
POE	Noted West Point expellee
POE	Poet-horror writer
POE	"To Helen" author

POE	Creator of the modern detective story
POE	Detective-story progenitor
POE	"The City in the Sea" poet
POE	Author credited with inventing the detective story
POE	"The Imp of the Perverse" writer
POE	"Annabel Lee" poet
POE	"The Bells" poet
POE	"The Gold Bug" author

POE	"The Tell-Tale Heart" writer
POE	"Ms. Found in a Bottle" author
POE	"Once upon a midnight dreary" poet
POE	"The Raven" poet
POE	"Ulalume" poet