Related Clues:
- Signal when it hits a billiard-ball
- Rod's signal
- Rod for snooker
- Sporting rod
- A prompt
- Signal billiards players need
- A reminder to get in line?
- Prompt; reminder
- Stick with pigtail?
- Reminder for people in line for audience
- Orderly waiters heard signal to act
- Signal for actor to speak
- Line in speech? Indeed
- Maestro's signal
- Actor's hint