Answer:
My voice is tender my waist is slender and I'm often invited to play. Yet wherever I go I must take my bow or else I have nothing to say.
I have roots nobody sees. I am taller than trees. Up, up I go but I never grow. What am I?
I wear a red robe with staff in hand and a stone in my throat.
I keep things green and keep kids happy during summer time.
I am Invisible Man's drink at snack time
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.