Related Clues:

• It might have a twist
• Book basis
• Twist onstage
• Dry wit
• Jonathan Swift specialty
• It might consist of a 19-Across
• Whodunit component
• Twist at the end
• Central story line
• O. Henry's forte
• A literary incongruity
• Movie's story line
• It might thicken
• Sarcasm, e.g.
• 'Hipster Handbook' subject