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.
Hoofed frolicking.
What is as big as you are and yet does not weight anything?
Feed me and I live, give me drink and I die.
It is able to speak because it has a hard gone. You know what it is as soon as it has sung. What is it?
What is so fragile that saying its name breaks it?