Related Clues:

• It may be driven during a storm
• Hourglass filler
• Driveway material
• Shorefront?
• Hourglass fill
• Plaster ingredient
• Beach towel coating
• Sidewalk material
• Work across the board?
• Hour-glass fill
• Word with bag or box
• Writer George --
• Ocean liner?
• Hourglass stuff
• Fix permanently