why did you not raise the flop or turn?

Seems like a kinda whatever bluff catcher to me. I think we want to try and block value combos while not blocking bluff combos. I don't think the ace of clubs removes that many bluffs at all. Hands like t976, qjt, ect, seems like reasonable bluffing combos for villain. I'd be curious to get a better idea of how often you show up with straights here. Mdf would have you defending 50% vs pot here, but I think that's definitely too high in that a lot of possible hands he could bluff here have some small amount of equity. Card removal is huge here, too. You should have a decent amount of straights, some sets, and two pair hands with more relevant card removal.

What i found that when there is an A and K on the board, people often have showdown value- top pair, or 2 pair, which they are not turning into a bluff, so only a few hands remain that has no SD value (QJTx for example). If the board was 49Tss 5 7 and I had T9, then I'm more inclined to call