Related Clues:

• Number of Es in this puzzle?
• See 29-Across
• Minimal order
• Smallest positive integer
• Single entity
• Hydrogen's atomic number
• Lunch time, for some
• See 46-Down
• See 82-Across
• Simple ticket order
• Start of a long-distance call
• Lone
• Like-minded
• Indivisible
• January, briefly