get featured

// WP_Query arguments
$args = array(
	'post_status'            => array( 'publish' ),
	'nopaging'               => true,
	'posts_per_page'         => '1',
	'meta_query'             => array(
		array(
			'key'     => '_is_ns_featured_post',
			'value'   => 'yes',
		),
	),
	'cache_results'          => false,
);

// The Query
$query = new WP_Query( $args );