I've run clen by itself, clen with T3, and DNP with T3, but I've never run DNP & Clen. Adding clen is probably a waste, but if you are running DNP long term, it might help because of its anti-catabolic properties.
Why didn't anyone support running T3 with your DNP? T3 helps keep the blast furnace going after a few days on DNP, because you body will try to lower your metabolism to compensate for the effect DNP has on your body.