A simple drill I learned many years ago:
Address the ball with a 7 iron nice and relaxed and make sure your hands are ahead of the clubhead/ball position.
Take a slow easy backswing and on your downswing focus on pointing the grip end of the club down the target line so your hands are always ahead.
Accentuate keeping your head down a little longer(ala, corey pavin) and learn to feel the lag position as you strike the ball.
This is the position you want with every club.