Related Clues:

• Fixes at zero, say
• Bowling lane buttons
• Fixes a clock
• Skin transplants
• Devices on bowling lanes
• Do-overs
• You push these at bowling alleys and on VCR's
• Inserted shoots
• Hits the snooze button, e.g.
• Plant transplants
• Transplants, in a way
• Turns back to zero
• Shoots from another plant
• Turns back, maybe
• Turns to 0, say