you could try something like this in a template
if ($ni->level == "1" && $ni->hasSubmenu) {
echo '<li class="' . $ni->classes . ' '.$currentClicked.'">';
echo h($ni->name) ;
} else if {
echo '<li>';
echo '<a href="' . $ni->url . '" target="' . $ni->target . '" class="' . $ni->classes . '">' . h($ni->name) . '</a>';
}