Related Clues:

• It makes a kitty grow
• A penny, sometimes
• Poker opener
• Start to school
• Tender opening?
• Ingredient in a pot
• Game admission
• Historic beginning?
• Up-front money
• Requirement for some games
• Pre-deal payment
• Penny-___ (low-stakes)
• Kitty starter
• Stud fee
• The first chip, usually