Possible Clues:

• Deserving to get it
• Named; allowed
• Authorised; bearing the name
• In debt, let off with no hint of blame -- like a noble?
• With right to be called, let it end badly
• Granted, it encapsulates what's at the end of 17 down and definitely legal
• Authorised
• Heading in goal with power?
• Being inadequate, was first to be qualified!
• Championship secured in final stage with style