How to render field in hook_form_alter?
Question is, the profile field of which user? The node author, or the current user?

In both cases you need to fetch the $account you are trying to pass to field_view_field.

For the current user:

global $user;
$account = user_load($user-&gt;uid);


For the node author:

$account = user_load($form_state['node']-&gt;uid);