Is it possible to create a view to show a field from a user acc and content?
To do that you need to link the user account some how to content which i assume could be possible using  $node_author, you also need to connect both the contents with each other using reference field.

In drupal view you can use Relationships tab which available above the Arguments in the center colum of the view add/edit form. To learn about Using View's relationship pleases refer to How To: Using View's Relationships