I recommend you to disable Toolbar module and use Administration Menu Source with Administration menu and enable Admin Menu Toolbar which will give you the same look as Drupal Toolbar.
Administration Menu Source:
Use a different menu as the Administration Menu. Configurable per role.
Custom Solution:
Create a custom module add the following hook_page_alter
function:
function mymodule_page_alter(&$page) {
global $user;
if(!in_array('editor', array_values(array_map('strtolower', $user->roles))) &&
!empty($page['page_top']['toolbar'])) {
$page['page_top']['toolbar']['#access'] = FALSE;
}
}
The above code will check the role of current user and will hide toolbar if current user is not editor.
Note: make sure to replace editor to whatever editor role you named.