Right on. If the roundhouse kick is to the head, dropping a bit below it also helps, or even sidestepping it while it is being delivered (sometimes possible if you see the setup from the front fake).
This also works quite well with punches. If someone comes at you with a wild swinging punch with their right hand (more of a boxing style), wait for the punch to already be travelling towards your face (height already established), then stepping forward, to the left, while dropping down (bent knees), redirect their punch with your left hand while punching forward to their arm/armpit/face while their force is coming at you. Very effective as they run into your punch.
But, it's not aikido. Maybe just an open hand to hit them off balance.