Churchlady, is he just being raised with hatch mates, or is he in a multigenerational flock? If it is a multigenerational flock, he might straighten up. If he is with flock mates, he is probably going to become much worse. Older adult birds, tend to thump manners into a younger cockerel, without their presence, he is the biggest bird in the group, and often becomes a bully.
Any rooster that is not lending peace to the flock, or to me or to anyone else that comes to the coop is culled. Contact the feed store, the county extension agent, the local poultry club and ask for nice roosters that have been raised in a multigenerational flock. Do not get a rooster until your pullets are laying. You want the rooster that was so darn nice, they didn't need him, but too nice to cull.
A good rooster in the flock is fun to have. A jerk is a jerk and can ruin the whole experience.
Mrs K