middle pair + OESD - flop shove?

[Esmerelda]

Drawing dead?
10-8 and 8-5 would leave him drawing to a chop but neither hand is likely given heroes holding and pf action.

I don't like the shove either. What better hand folds? Maybe T9/98/A9 but does this villain raise that on the flop? Sure sometimes but not often enough IMO.

Villain pf numbers make 97, 76 and the sets all plausible. His af makes me think that he doesn't make this flop raise very often without a big hand (2pair or better). I think I call and fold to a big turn bet on a blank (if turn checks through then I bet/call the river)