You have a teenager with an older lady. He's going to act as butthole teenager cats do: attacking, stalking, pouncing, wanting to play, etc.
This isn't up to you, it's up to the female cat to set boundaries and let him know when she's had enough. I highly doubt it will escalate to blood being drawn. She'll catch on quickly enough that he's just a youngster with a lot of energy and will let him know, OH TRUST ME, will let him KNOW when she's had it.