Related Clues:

• Turn back the clock, say
• Start from zero
• Start-over button
• A Liberal in government put straight again
• Calibrate rule about nearly everything
• Adjust again (to zero)
• Change hands, in a way?
• Get another instrument — there's a note missing
• Roll back to 0
• Put back to 0, perhaps
• Another adjustment on TV
• Change back to 00:00, say
• Get a fresh start
• Change, as a trip meter
• Button at a bowling alley