Related Clues:

• Pro pretending to be an amateur
• Twin, one using the phone
• Illegal contestant
• Member of tribute band, perhaps
• One who calls 'Double'?
• Preparing to release app for a phone
• Accomplishment in horseshoes
• Campanologist’s double?
• Someone who's really too good to be competing
• One calls for a double!
• Church musician, one who shouldn't be playing?
• Bell that looks the same
• Grantland successor, with "the"
• Double bell?
• Dead __: look-alike