Leave it "leaned" in the position you kicked in. You can also tuck or kinda bob/duck your head back onto your shoulders as you follow up on the kick or move afterwards.
I think 7* meant a straight right as in a cross? Otherwise he might have said teep or push kick, which is also a standard counter or defense to the big sabre kick.
You really need to work the mitts or pads to develop the head movement and proper guard position/motions. IMO.