A Reseller account in WHM is an owner who creates and sells cPanel accounts to other users. When you become a Reseller, you purchase the system resources from Hostwinds. Once you own the resources, you distribute them among the cPanel accounts that you sell. You're given a limited version of WHM that allows you to manage the cPanel accounts you sell properly.
Hostwinds clients who need access to WHM will want to purchase a Cloud VPS or Dedicated Server with a cPanel license to access WHM and full control over the settings. A cPanel license can be added during the checkout process.
Here is a list of the typical functions that come with a WHM Reseller account:
The tools necessary to create, delete and suspend cPanel accounts
The ability to manage customer support requests through cPanel
Permission to check the server information and status
The tools necessary to manage and monitor your sites, including password resets
Control over your client domain names and usernames
Control over all of your domains' DNS zones
Ability to customize your hosting and control panel; skeleton directory, and branding