Related Clues:

• Wedded
• 38-Across, to us
• It precedes 'Blastoff!'
• A person
• Sole
• Self starter?
• Twelve
• See 67-Across
• Microphone tester's word
• More than zero
• Shootout time
• Day break?
• When all hands meet
• See 32-Across
• Count start