I think to flow with the direction of the hook to the temple and do what Chris has said with your legs or roll with it then have your head go under it and come up on the outside of his arm is the answer for you.
You can have your elbow help his arm on its way through if you are caught leaning back slightly cause your elbow comes up naturally anyway.
You can also get a result by folding your left knee in and going down and under so that as you turn with his shot you are loading your right hip and shoulder up; then to go out underneath his spent arm you are changing hip direction and you can throw a loaded right hand as your feet then take you out to where his hook just came from.