Related Clues:
- Come out from the wings
- 'Come in,' if you're a super-dramatic movie villain
- '___ the Wu-Tang (36 Chambers)' (hip-hop album peppered with kung fu movie samples)
- Come into some barren terrain
- Computer-key word
- Carriage return equivalent, today
- Go in hospital department with expression of hesitation
- Going in to pen, terrified to go in!
- Register formally as a participant
- Begin upon
- Key hit when starting a new paragraph
- asdfghjkl;'___
- Big keyboard key
- Drama direction
- Come in, and a hint to what 17-, 39-, and 62-Across have in common