Related Clues:

• Sole
• Self starter?
• Word on the front of all U.S. coins
• Microphone tester's word
• More than zero
• Believe in
• One in numismatics
• See 32-Across
• Count start
• Low digit
• Singular
• Formal pronoun
• Top-of-the-chart number
• Telephone button that lacks letters
• Bill in a till