Related Clues:

• Wrong move
• Wrongdoing
• Program problem
• Publisher's blunder
• Printing mistake
• Make a boo-boo
• Bobble
• Reason for a reduced grade
• Wild throw, e.g.
• Bad throw, e.g.
• See 9-Across
• Boner
• Dropped pop-up, e.g.
• Silly goose
• Screw-up