Related Clues:

• Opening chip
• Trigonometry wave
• Player's contribution
• Toss in a chip
• Get into the game, in a way
• A hand-holder may build on this
• Get the pot started
• Card-game stake
• Had chips, say
• Cosecant reciprocal
• Kitty insert
• "I'm in" indicator
• Angle function
• Get in on the pot
• Predeal payment