fetch_rss.php

<?php if(function_exists('fetch_feed')) {
 
 include_once(ABSPATH.WPINC.'/feed.php');
 $feed = fetch_feed('https://www.snippet.uk/groups/not-forgotten/blog/feed/all');

 $limit = $feed->get_item_quantity(7); // specify number of items
 $items = $feed->get_items(0, $limit); // create an array of items

}
if ($limit == 0) echo '<div>The feed is either empty or unavailable.</div>';
else foreach ($items as $item) : ?>

<div>
 <a href="<?php echo $item->get_permalink(); ?>"
   title="<?php echo $item->get_date('j F Y @ g:i a'); ?>">
     <?php echo $item->get_title(); ?>
 </a>
</div>
<div>
 <?php echo substr($item->get_description(), 0, 200); ?>
 <span>[...]</span>
</div>

<?php endforeach; ?>