Answer:
Very helpful if you intend to go gently down a river.
It could make arrows fly and kites soar. What is it?
I am neither a guest nor a trespasser in this place. I belong that belongs to me. Where is it?
In many hallways you would stand, if not with this in hand.
Hot tempered and sometimes it blows its top, making a mess of everything.
Two little holes in the side of a hill. Just as you come to the cherry-red mill.