Related Clues:
- American through to final of slam gets beat
- Drone; tap idly
- Buzz; stink
- Cut digit catching front of remote drone
- Half of them rumble with a rhythmic sound
- Tap a beat with fingers
- Well-tuned engine output
- Sing with mouth closed
- Drone or buzz
- Vibration sound
- Operate smoothly
- Continuous rhythmic humming sound
- Cut thread ... half of which lost by hesitating?
- Tone heard rhythmically, usually monotonous primarily
- Pluck idly, as a harp