Villain could easily be betting the river with Ace high here. Doubtful hes calling with that.
He could be betting a T, although I doubt he has one. He would call a bet with a ten and might call a check raise since it seems like any hand that beats a T wouldve bet the turn or river most times.
He could have something like
[Qc] or even just KQ with no clubs since
[Qc] mightbve bet the turn. He never calls a bet with K high. I get called on the flop by overcards quite a bit so thats not totally out of the realm of possibility.
He could be value betting some mid pair and may or may not call with it.
The only hands that scare me are 99 / 88.
So, I disagree with Xaston.