Possible Clues:

• Warrior with a sole weakness? Yes and no
• Top pilots welcoming top racing driver as hero
• One's inclination is to intercept Greek with basic weakness
• See 22-Across
• and 12 Across: Coldness when sitting in seat troubled butt and leg? The latter, partly
• In Greek mythology, his body was invulnerable, except for his heel
• Old Greek warrior catching cold in choppy sea
• Commander of the Myrmidons
• Homeric hero suffers pain with internal problem
• Hero with a weak heel