I'm web designer and I have currently only a few clients for making a website.
I've unlimited hosting account and I want to host their websites in my account without reseller account (actually it is not needed for constness).

Only my client's need is FTP access to their personal directory.

So is it possible to give them separate phpMyAdmin access with this strategy?

As per my knowledge it is done with "addon" domain pointing on my hosting account's directory with cPanel, am I right? Or there is another solution for it without reseller account?