I think so, yes.... at least it is a conscious effort until you 'get it', and then it is less so (or you'll hook the heck out of it). I feel the back of my left hand as the clubface (educated hands).
On the downswing, you can rotate the whole arm/club/forearm hard, and as long as you keep the angle in the right wrist, and have a flat left wrist through the ball, you'll get the general idea.
Rotation of the left arm/forearm in the downswing is one of the best ways to feel solid, hands leading, impact.
You have to keep this rotation in 'synch' with body turn (put a headcover under your left armpit).
Keeping your elbows the same distance apart helps, as does feeling your upper arms against your chest from hip to hip.
edit: for me it starts from the top of the downswing, at least in 'feel', you have to have proper lower body movement, or you'll just throw it outside and pull hook.
Think of the back of the left hand going towards the ball, or a spot in front of it, as if you were throwing a frisbee at the ball, while rotating that forearm.
Once you get to hooking it, slow everything down and focus on half shots, staying in 'synch' (hands stay in front of chest), when shoulders stop, arms stop on backswing (aka - connection, keeping those upper arms lightly against the chest)