Related Clues:

• A Polynesian hello or goodbye
• A Hawaiian welcome
• A Polynesian hello
• A Hawaiian hello
• Exclamation calling attention
• A halo seen in Polynesian greeting
• 16 across in Hawaii
• Hello in Hawaii
• Hello or goodbye in Hawaii
• A greeting in Hawaii
• Hello, Hawaii
• Hello in Honolulu
• Honolulu farewell
• The grass over 7 down, by the sound of it
• See 21 across for the sound of the fodder