Wrapper around the term description field (because display suite does not allow) Base theme strips the prefix & suffix, you can reset it in your custom theme
/**
* Implements template_preprocess_taxonomy_term().
*/
function YOURTHEME_preprocess_taxonomy_term(&$variables) {
// Add taxonomy term description wrapper
$variables['content']['description']['#prefix'] = '';
$variables['content']['description']['#suffix'] = '';
}