jQuery.noConflict();
jQuery(document).ready(function($) {
var foo1 = acf.get('the_description');
console.log(foo1);
});

add_action( 'wp_enqueue_scripts', 'my_scripts_method' );
function my_scripts_method(){
wp_register_script( 'acf-input', acf_get_dir( "assets/js/acf-input.min.js" ), array('jquery'), acf_get_setting('version'), true );
wp_enqueue_script( 'custom', get_template_directory_uri() . '/js/custom.js', array('jquery','acf-input'),null,true);
});

acf.add_action('ready', function( $el ){
  var foo2 = acf.get('the_description_natural');
  console.log(foo2);
});

acf.getField('the_description'); // не acf.get()

wp_enqueue_script( 'custom', get_template_directory_uri() . '/js/custom.js', array('jquery','acf-input'),null,true);
wp_localize_script('custom', 'custom_vars', array(
    'natural' => get_field("the_description_natural",$post_id)
    )
);

jQuery.noConflict();
jQuery(document).ready(function($) {
    console.log(custom_vars.natural));
});