Annual meteorology, Ancient 'technology'? Soil-pig's sign, Of climate timeline?

Some store it for winter: both people and critters. It holds machinery together, but it can be eaten.

It can make a sound from a gentle breeze whispering through elegant trees to the clangor and rattle of a terrible battle. Its name sounds similar to a goblin like creature sipping a lemonade.

I whisper through trees with a light sound, or I coil the strength that makes gears pound. One moves by nature, wild and free, one needs a turn to work for me.

I walk without hands, I speak without words. I answer a question That has no end.