Related Clues:

• Failed attempt
• Pageant winner
• Fail to see
• Oversight
• Like 50-Across and 10-Down
• Overshoot, say
• Failure
• Like 'E pluribus unum'
• London TV inits.
• Get wrong
• See 41-Across
• 'I, Claudius' network
• Long for
• Avoid
• Feel the lack of