How can I allow a custom taxonomy for certain roles?
When registering your taxonomy you can pass an argument called capabilities. Simply passing capabiities that only admins and editors have. $args = array( ‘capabilities’ => array( ‘manage_options’, ‘edit_posts’ ) ); register_taxonomy( ‘foobar’, ‘post’, $args ); https://codex.wordpress.org/Roles_and_Capabilities#Editor