Related Clues:

• Supporting part
• Common arthritis site
• Place for a pad, maybe
• Chicken drumstick
• Patella place
• ACL's locale
• Midleg joint
• Proposer's prop?
• Chicken eater's choice
• Long John Silver had one
• Worn spot on Levis
• Kind of a jerk?
• Thigh locale
• Arthroscopic surgery site
• Guitar support