you could dps something down, root it, atone it, reverse ds and send the lowbie in for credit. Issue with clerics is they lack a meaningful fade, self DS, dps and an "easy" AE threat, heals with subtlety off should be enough to hold off bard song though. It can be done but not to the efficiency of a sk,druid.
Although if they are low enough level, hit them with temperance, a HoT. cast blood on the mob and let the lowbie kite it around to grab a pack and kill em.. should be decently good still id imagine