Related Clues:

• Big boo-boo
• Foozle
• Howler
• It's just not right
• Misstep
• Wrong move
• Wrongdoing
• Program problem
• Bobble
• Reason for a reduced grade
• Wild throw, e.g.
• Apology preceder
• Bad throw, e.g.
• See 9-Across
• Dropped pop-up, e.g.