As a standard action, you can fake out an enemy within 60 feet, making that enemy open to your attacks. Attempt a Bluff check with the same DC as a check to feint against that enemy (though this isn't a standard check to feint, so Improved Feint and Greater Feint don't apply). Even if you fail, that enemy is flat-footed against your attacks until the end of your next turn. If you succeed, the enemy is also flat-footed against your allies' attacks until the end of your next turn. You can't use clever feint against a creature that lacks an Intelligence score.
At 6th level, you can spend 1 Resolve Point to treat a failed Bluff check for clever feint as if it were a success.