Shortcode – wishlist_single

[wishlist_single id="123"]

Or

<?php
// Wish list id
$post_id = get_the_ID();
echo do_shortcode( "[wishlist_single id=$post_id]" );
?>

This shortcode use to display single wishlist page with item list.

909-wishlist-single

How to create custom single page for wishlist?

You can create custom template for wishlist page, you will need to copy and create  single.php to  single-wishlist.php and under the content you can use following shortcode.

<?php
// Wish list id
$post_id = get_the_ID();
echo do_shortcode( "[wishlist_single id=$post_id]" );
?>