Answer:
As soft as silk, as white as milk, as bitter as gall, a thick green wall, and a green coat covers me all.
My first is high, My second damp, My whole a tie, A writer's cramp
An open ended barrel, it is shaped like a hive. It is filled with the flesh, and the flesh is alive!
What has roots that nobody sees, and is taller than trees. Up, up it goes, and yet it never grows.
My first is second in line; I send shivers up your spine; not quite shining bright I glitter in the light.
If it’s information you seek, come and see me. If it’s pairs of letters you need, I have consecutively three. What am I?