Answer: whirs

AnswerCrossword Clue
WHIRS

Fan sounds

WHIRS

Moves with a hum

WHIRS

Hums along

WHIRS
Rotates with a buzz
WHIRS
Goes hummingly?
WHIRSRevolving hums
WHIRSPropeller sounds
WHIRSSpinning sounds
WHIRSBuzzing sounds.
WHIRSBuzzes around.
WHIRSBuzzes
WHIRSBirds' wing sounds
WHIRSHelicopter sounds
WHIRSBlender noises