When you use wp_insert_term it removes any html tags in description. But what to do when they are needed?
Example
This description:
<p style="text-align: center;">content</p>
In function wp_insert_term() will be:
<p>content</p>
How to fix
You need use pre_insert_term
Before function wp_insert_term() insert:
remove_filter('pre_term_description', 'wp_filter_kses');
