Display an ACF field below the product tile in the WooCommerce product loop

gistfile1.php

<?php 

// don't include this opening PHP tag if you're copying this into your functions.php file etc

/**
	 * Renders a Product Subtitle
	 *
	 * Can change the html/classes etc as much as you want
	 * 
	 * Requires Advanced Custom Fields to work
	 */
function ttd_product_subtitle(){
  $subtitle = get_field('YOUR_FIELD_NAME_HERE');
  
  if ( $subtitle ) {
	  echo '<div class="subtitle">';
	  echo '<p>'.$subtitle.'</p>';
	  echo '</div>';
  }
}
/**
	 * Hooking it up to the revlevant action
	 *
	 * If prioroty (the number) is lower than 5 it will appear above the ratings and price
	 */
add_action( 'woocommerce_after_shop_loop_item_title', 'ttd_product_subtitle', 4);