Related Clues:

• Terrier's teeth target?
• Oft-twisted joint
• Place for a footballer's pad
• Sock height
• Word with ''high'' or ''jerk''
• Common injury site
• Low joint?
• Kilt's stopping point
• Patella location
• It's found under a hip joint
• 'Oh! Susanna' closer
• Oft-scraped site
• London Underground, with 'the'
• It might be tested with a hammer
• A midi covers it