Answer:
Squeeze me and I cry tears as red as my flesh but my heart is made of stone.
I start new then become old. Start clean but be one dirty. I usually start big then become little.
In a tunnel of darkness lies a beast or iron. It can only attack when pulled back. What is it?
I am a rock group with four members. All dead one was assassinated.
Six letters do my name compound; among the aged oft I'm found; The shepherd also by the brook hears me when Leaning on his crook; but in the middle me divide and take the half on either side each backward read a liquor tell ev'ry gay toper knows it well.
What never gets any wetter no matter how hard it rains?