Possible Clues:

• One-armed bandit
• Olive can be a little dynamo that persuades some to chance their arm
• One might be gambling on this in opening 18 across for Greek character in Maine State
• 18 across opens church in American state synonymous with the pulling power of gamblers in Las Vegas, for instance
• Gamble on this manic thief possibly clinching game
• Rum chief in TA's drunk as a pub staple?
• Device for making a couple of dates with Cherry has pull for gambling man
• Date powerhouse working in amusement arcade
• Gaming device
• Feature of amusement arcade