A staff user can be added to a clinic account, you can find out more about the difference between the clinic and prescriber account here.
A staff user can be added when a clinic has multiple admins personally to help manage prescription operations. These include: viewing prescriptions signed, topping up tokens, creating draft prescriptions, re-sending prescriptions etc.
You can add a staff user using the 'Add Staff User' option.
Beside each user, you have an edit and inactivate button to change their details or inactivate their account if needed.