Related Clues:

• ___ of a kind
• The least bit
• Leading figure
• With 25-Across, 50%
• Whatever number
• It separates by means
• The loneliest number
• Unit
• "... there remained not ___." (Ex. 8:31)
• 'That's ___ for the books!'
• Die roll
• Divided by itself, the result is the same
• Indefinite pronoun
• With 31-Across, some clubs
• Penultimate word in a countdown