For anyone that’s looking for something like this, I have created a little add on that adds a user role setting to every field. It’s kind of a big hammer approach to making making fields only available to specific user roles and it only works with ACF5 (Pro). https://github.com/Hube2/acf-user-role-field-setting. If you only want to do this for some fields rather than all fields it would be easy to use the code ans an example of what needs to be done.
