A young fella has sat at the table for an hour or so. He isn't massively aggressive, but more so than average at the table. His standard raise appeared to be 750 with blinds 150/300 and 25 ante, and he also punished multiple limpers a couple of times with a raise from button/cut off to 1500 or so. I think it was 9 handed. My reputatiion is probably in tatters, but he probably doesn't know that.
The blinds have just risen to 200/400 with 50 ante. He raises to 1050 from UTG+1. I call from cut off with

with 8000 or so behind. Do I just push here? I think there were 2 callers in the SB and BB, though it may have been one. Either way there is 4K or so in the middle.
Flop comes

. It goes check, check and he puts in a standard 2500 or so. Now if I had

, this looks a simple push, is a push here easy, marginal or spewy?