Related Clues:
- When repeated, testing of a mic
- Put bugs in someone's home
- Drip source, at times
- Concealed mike
- Steinway string material
- Activate, as a phone app
- One might be worn in a sting
- Bud source, perhaps
- Thin metal thread
- Finish line in a horse race
- Power conduit
- Open for use
- Piano string
- Dance like Gene Kelly
- Bridge cable, essentially