Maintain the dish
Your goal is to make ball-first contact when you chip. But what you don’t want is to swing down so steeply that the leading edge of the club digs into the turf, gets stuck, and you chunk the shot. You need a shallower approach so the wedge glides along the turf through impact. You can get that by creating a little dish in your left wrist at address (left), and maintaining that slightly cupped position when you swing. The shaft will still lean slightly forward at address so you can hit down on the ball, but the dish ensures the club doesn’t stub. That’s how you hit it crisply.