Possible Clues:

• Place to wear a 56 Across
• Uke player's gig
• Party with ukes
• Tiki torch setting
• Waikiki wing ding-
• Bash in 43 Across
• Waikiki wingding ...
• Oahu soiree
• Hawaiian 39-Across
• Where to sing 'Aloha Oe'