Related Clues:

• Unexpected problem
• Planner's woe
• Fly in the ointment
• One taking the stage?
• Unforeseen obstacle
• Impediment to smooth sailing
• Zipper problem
• Jesse James, e.g.
• Unexpected difficulty
• Hose mishap
• Hindrance
• Hang-up
• Minor setback
• Criminal
• Roadblock