Related Clues:

• Inscribes, e.g.
• Walks on stage
• Certifying exams
• Keyboards, maybe
• Partner of breaks
• Signs up for, as a contest
• Infiltrates, say
• Comes through the door
• Adds to the database
• Appears onstage
• Embarks on
• Effects ingress
• Goes in or records in book
• Actors tread them
• Committees or planks