1/2 game, villain is tight (24/15). I open AKo from middle, he defends BB

Flop: KJ2 , two clubs (which I don't have)
He checks, I cbet 2/3 pot, he calls
Turn: Q of spades, brings another fd
He checks, I check also (for pot control)
River 4o, he now leads for 2x pot (!!).

What is his range here? Which hands should I call