Related Clues:

• Bobble
• Memory failure
• Reason for a reduced grade
• Silly blunder
• Come to an end, like a subscription
• Wild throw, e.g.
• Bad throw, e.g.
• See 9-Across
• Need renewal
• Boner
• Dropped pop-up, e.g.
• Silly goose
• Screw-up
• One way to get to first base
• Instance of zoning out