Answer:
Spies and detectives do this to phones and musical shoes make this sound.
Humans have two that shrink in the light and expand in the dark
Which is the oldest tree?
Remove 'Y' and you do this with apparel. Remove 'E' and I am cautious.
It keeps you on the ground and stops things from floating around. What is it?
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.