TEC - Template override for the event organizer block to include hotlinks for email phone and organizer name.

event-organizer.php

<?php
/**
 * Block: Event Organizer
 *
 * This override will add clickable URLs to the following:
 * - Event organizer name
 * - Event organizer phone number
 * - Event organizer email address
 *
 * Place this template file in your own theme / child theme by creating a file at:
 * [your-theme]/tribe/events/blocks/event-organizer.php
 *
 * @version 4.7
 *
 */

$organizer = $this->attr( 'organizer' );

if ( ! $organizer ) {
	return;
}

$phone   = tribe_get_organizer_phone( $organizer );
$website = tribe_get_organizer_website_link( $organizer );
$email   = tribe_get_organizer_email( $organizer );
$name    = tribe_get_organizer_link( $organizer );

?>
<div class="tribe-block tribe-block__organizer__details tribe-clearfix">
	<div class="tribe-block__organizer__title">
		<h3><?php echo $name; ?></h3>
	</div>
	<?php if ( ! empty( $phone ) ) : ?>
		<p class="tribe-block__organizer__phone"><a href="tel:<?php echo esc_html( $phone ); ?>"><?php echo esc_html( $phone ); ?></a></p>
	<?php endif; ?>
	<?php if ( ! empty( $website ) ) : ?>
		<p class="tribe-block__organizer__website"><?php echo $website; ?></p>
	<?php endif; ?>
	<?php if ( ! empty( $email ) ) : ?>
              <p class="tribe-block__organizer__email"><a href="mailto:<?php echo esc_html( $email ); ?>"><?php echo esc_html( $email ); ?></a></p>
	<?php endif; ?>
</div>