Related Clues:

• Good to escape from caveman's net
• Secure piece of glassware that's about right — it completes a set
• Retire beak that's mishandled decisive points in court
• Last match in a competition
• "All sales are ___"
• Ma leaves fan mail from last match
• 'Is that your answer?'
• Last bit of fish? One left
• Decisive action for one seeking a divorce?
• Draw destructive one used to choose winner
• Divorcee in decisive court action?
• Last one to abandon top of spire?
• The latest thing in ties?
• Sound of Asian wave? It's decisive
• Extra-important exam