Related Clues:

• Tennis tournament
• Unrestricted tournament
• Let customers in
• Say 'one club,' say
• Type of enrollment
• Not shut
• Unlocked
• Word on a store sign
• Aptly named tournament
• Easy to get into
• Tourney, often
• Admitting all contestants
• With 31A, Ali Baba's keywords
• Unclog, as a drain
• Create, as a chair