single.php

<?php

$gallery = ea_cf( 'ea_product_gallery' );
if( $gallery ) {
  
  wp_enqueue_script( 'slick' );
  wp_add_inline_script( 'slick', 
  'jQuery(document).ready(function($){
    $(".product-gallery").slick({
        autoplay: false, 
        arrows: false, 
        dots: true, 
    });
  });' );
  
  // output gallery
}