Reply To: add template_part seven

Sorry for the late reply, just noticed your reply was marked as spam and was pending review for some reason.

The file you need to edit is content-single-topic.php

The code is <?php bbp_single_topic_description(); ?>

Without any template edits, you can also place this in your child theme or in a functionality plugin.

add_filter( 'bbp_get_single_forum_description', 'ja_return_blank' );
add_filter( 'bbp_get_single_topic_description', 'ja_return_blank' );

function ja_return_blank() {
    return '';
}

There is a plan to create a guide to show the template hierarchy in better detail.