应该采取以下措施：

$args = array(
        \'post_type\' => \'listings\',
        \'posts_per_page\'=> -1,
        \'post_status\' => \'any\',
    \'tax_query\' => array(
        array(
            \'taxonomy\' => \'status\',
            \'field\' => YOUR FIELD NAME HERE???
            \'terms\' => \'standard\'
        )
    )
);
$query = new WP_Query( $args );

foreach( $query->posts as $id ){
           wp_delete_post( $id->ID, TRUE );
      }