Clean Deadlift

Trains the Hamstrings.

How to do it

Set a loaded barbell on the floor over the middle of your feet, stance about hip-width.
Bend down and take an overhand grip wider than your shoulders — the grip a clean uses.
Set your hips lower than in a conventional deadlift, chest up and back flat.
Push the floor away and lift the bar, keeping it close to your legs.
Keep the torso angle steady through the first half rather than letting the hips rise first.
Stand tall at the top, then lower along the same path.

Letting the hips shoot up first. The lower start position and the steady torso angle are the whole point — if the hips rise and the bar stays put, this has become a conventional deadlift from an inefficient start.
Taking a conventional grip. The wide, clean-width grip is what lowers the hips and lengthens the pull; a narrow grip undoes both.
Loading it like a conventional deadlift. The longer range and the higher chest position mean less weight, and that is the trade this variation makes.
Rounding the upper back to reach the bar. A wider grip means a longer reach, and if a flat back will not get there, the bar goes on blocks.