Related Clues:

• It may surround a lagoon
• Ring America after the peak
• Reef enclosing a lagoon
• Bikini, possibly, demanding a tax
• Books back in totally tropical paradise
• Geographical ring
• Life Savers shape
• Shape of a doughnut
• Volcanic vestige
• Island like Kiritimati
• Single sound of bell's ring, in the main
• Donut's shape
• Bikini in the ocean, e.g.?
• Island area’s first levy
• Coral islet chain