[vixticator]

You can only beat a pure bluff. Standard fold. Backdoor spades got there. That might add up, weak betting the flop, pause and call turn, overbet river. Or a Ten. I think this is a pretty strong play. What else is he getting to the river with? Most sevens have you beat, I don't think this is ever a six or three. It's either nothing or a big made hand.

Uh, leading turn is meh... especially for that amount. You should bet like .35 or check. I don't see much reason to continue though and would c/f.