Related Clues:

• Plumb of 'The Brady Bunch'
• See 64-Across
• Verge
• Apple picker
• Role in Haydn's 'The Creation'
• See 51-Across
• Soul singer Hayes
• Second person
• Start of something big
• Night of celebration
• Nearly sacrificed son
• Woman in a garden
• Threshold
• Adam's rib, so to speak
• Palindromic time