Related Clues:

• Body part with a cap
• Word with hold or nail
• The third O of OOO
• Bathtime tester
• It's easy to skin
• The third of three X's
• Gout target, often
• It's out on a limb
• One of a rhino's 12
• Part of a sock
• Water temperature gauge, sometimes
• Leg bend
• One may have water on it
• Footballer's sore spot
• Common arthroscopy site