Related Clues:

• Wrongdoing
• Program problem
• Make a boo-boo
• Bobble
• Reason for a reduced grade
• Big muddle
• Silly blunder
• Wild throw, e.g.
• Bad throw, e.g.
• See 9-Across
• Boner
• Dropped pop-up, e.g.
• Chaotic
• Silly goose
• Screw-up