I don’t like the shove on the flop, you’re still behind a lot of what I perceive as his preflop BB 4x raise 3bet range - AA, KK, QQ, chopping with some AQs, beating JJ, TT, AK and are in just OK shape against his few nut flush draws. His flop 2/3 bet is also pretty big on a board that doesn’t smack his 3b range. I think I’m flatting the flop and playing AQ as a bluff catcher. In this exact scenario idk if you can get away on the River heart, but turn action would be important.
All that being said, this is why I don’t like playing big bloated pots (generated by a bit PF 3b) against the chip leader when you can pass and pick a better spot, especially in a more substantial tournament with ICM considerations.