Решение: (оставлю тут)
<?php
$brandTerms = get_terms('pa_brend', array('hide_empty' => 0, 'parent' =>0));
foreach($brandTerms as $brandTerm) :
echo $brandTerm->name;
echo $brandTerm->description;
echo $brandTerm->term_id;
echo get_field('logo_brand', $brandTerm);
endforeach;
?>