Paris Maghoma, Ben Chrisene and master poacher Mohamed Toure booked the Canaries’ place in Monday’s draw.
Josh Maja had equalised for their Championship rivals midway through the second half but City turned on the power to delight a bumper home crowd.
Clement gave his verdict on the win, who he wants in the fifth round and the initial fitness assessment on Oscar Schwartau’s second half departure.
The Belgian spoke to the media at Carrow Road on Saturday afternoon.