Answer:
Power enough to smash ships and crush roofs. Yet it still must fear the sun.
What is something yet nothing, but if you fill it up it will disappear?
What instrument can make any sound and be heard but not touched or seen?
What has a neck and no head, two arms but no hands?
I'm a long curved fruit that grows in clusters and has soft pulpy flesh and yellow skin when ripe.
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.