Related Clues:

• Ocean occurrence
• Sandbox toy
• Word with crimson or high
• Beach eroder
• Herbert sci-fi classic
• Stopgap measure for a 28-Across
• Trash holder
• Something to blame on the moon
• Plaster ingredient
• Beach towel coating
• Jack and Jill prop
• Beach hill
• Work across the board?
• The motion of the ocean
• Hour-glass fill