[canada_dry]

Sounds like you got real lucky and VIllain had An ace too, possibly a bigger ace than yours and you fluked out on the turn. Your aggressive betting may have lost your opponent if he had a weaker hand. Maybe he had a big pair, or maybe he had KJ and was bluff raising the flop. If you knew he would play his hand aggressively regardless of his holding then leading out was the right play. Otherwise I would have checked and concealed my hand and play the rope-a-dope game. But did you know this. What did Villain end up having?