hew something down
to fell something wooden, usually a tree. We will have to hew most of this forest down. They hewed down the tree.
hew something out of something
and hew something outto carve the shape of something out of something wooden. Dan hewed each of the posts out of a tree trunk. He hewed out a number of posts.
hew to something
to conform to a rule or principle. I wish you would hew to the rules a little better. Sarah refuses to hew to the company policies.