Hi @bcsplsanjay,
Thanks for the post.
Since you are using single value selection(Radio buttons) in your taxonomy, you do not need a foreach loop.
The code will look like so:
<?php
$term = get_field('taxonomy_field_name');
if( $term ): ?>
<h2><?php echo $term->name; ?></h2>
<p><?php echo $term->description; ?></p>
<?php endif; ?>
