Possible Clues:

• Run through the scale?
• Rung up on this- not even one foot at last
• Domestic device for climbing
• Eloper's need, maybe
• Housepainter's need
• Firefighter's gear
• May be in the stocking and get rung
• Inexperienced mathematician's uplifting apparatus
• The boy got a ruddy turn on the way up
• What you get rung up on in the stocking