Answer:
My first is a body of water. My second is me. My third came before. My fourth before all three. My fifth sounds like my first. My sixth is in a lake. Put all six together to make an animal that will keep you awake.
I work when I play and play when I work.
Flat as a leaf, round as a ring. Has two eyes, can't see a thing.
Known to accessorize with feathers, trumpets, and harps.
I usually wear a yellow coat. I usually have a dark head. I make marks wherever I go.
What did the piece of wood say when he saw the screwdriver and screws approaching?