Display the user_url field as a clickable URL link on the PMPro Member Directory and Profile pages if the field was included in the shortcode's field attributes.

pmpro-member-directory-clickable-usr-url.php

<?php
/**
 * Show a clickable URL for the user_url profile field, with the word WEBSITE
 * This will also stop the URL from being embedded with wp_oembed.
 *
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */

function my_pmpromd_clickable_user_url( $value, $original_value, $field_name ) {
	if ( 'user_url' === $field_name ) {
		$value  = ('<a href="'. $original_value  . '" target="_blank">Website</a>' );
	}
	return $value;
}
add_filter( 'pmpromd_format_profile_field', 'my_pmpromd_clickable_user_url', 10, 3 );