Answer:

chapter

Answer	Crossword Clue
CHAPTER	Fraternity branch
CHAPTER	Piece of history
CHAPTER	Book division

CHAPTER	Section of a book
CHAPTER	Local unit of fraternal order.
CHAPTER	Branch of a society.
CHAPTER	Section.
CHAPTER	Division.
CHAPTER	Verse's partner
CHAPTER	... and verse
CHAPTER	Fraternity unit

CHAPTER	Alpha or Beta, e.g.
CHAPTER	Writer's block?
CHAPTER	Book unit