Related Clues:
- Leave in a hurry, slangily
- Job, Joel or Jonah
- Borders order
- Part of ISBN
- Fictional work
- With 39-Across, shelf neateners (and what the 17-, 30-, 50- and 64-Across answers begin with)
- Film source, sometimes
- Musical credit
- Word with 10-Down
- Ludlum genre
- Paperback, e.g.
- Book of fiction
- Reserve officially
- Tome
- It's no short story