Related Clues:

• Book increment
• Song division
• The 16 in John 3:16
• Unit of literature?
• It may be metered
• Pound output
• Message runner
• Summon with a beeper
• Kenneth on '30 Rock,' e.g.
• Beep, as a doctor
• Capitol gofer
• Call repeatedly
• Stanza
• Limericks and such
• Feature of many a greeting card