Possible Clues:

• Clear or smooth by grating
• Recaps about abrasion
• Recaps about predicament
• That's the sort of trouble you get into for being so abrasive
• Scratch the surface in a predicament
• You'll be in trouble if you start from scratch
• Awkward situation caused by capers
• Move gratingly over
• This will get you into trouble if you start from scratch
• Rub; (bow and) be humble