$args = array(
        'posts_per_page'=> 7,
        'post_type' => 'product',
        'post_status'   => 'publish',
        tax_query' => array(
    array(
        'taxonomy' => 'product_cat',
         'field' => 'slug',
        'terms' => 'тут слаг категории', 
    )
),
        ); 
        $the_query = new WP_Query( $args );

<a href="<?php echo wp_logout_url(); ?>" title="Выход">Выход</a>