Related Clues:
- When repeated, testing of a mic
- Drip source, at times
- Activate, as a phone app
- Bud source, perhaps
- Open for use
- Dance like Gene Kelly
- Weak punch?
- Light touch on the shoulder
- Device for stopping strike
- Somewhere to drink beer
- Source of 16-Across
- Recording device cheers prier at outset
- "Singin' in the Rain" dance style
- You may feel one on your shoulder
- Source for beer or water