Related Clues:

• Beach sandal problem
• "True ___" (John Wayne movie)
• Coarse particles
• Abrasive material
• Abrasive stuff
• Moral fiber
• Perseverance
• Abrasive particles
• Persistence
• ''True ___'' (John Wayne movie)
• Sandpaper grade
• Firmness of character
• Sandy particles
• Sand and such
• Sand bits