Do you make this laydown?

[miami32]

I raise from early pos. with pocket queens. My raise is 3 times the bb. I get one caller. The flop is 7-8-9. Rainbow. I put in a standard continuation bet, and the other player moves in one me. He has roughly a little bit less then me, but if i call and lose, I'm pretty much done. The only read I had on the guy is that he was generally pretty tight. Ge got to the point he was at by making all in raises with decent cards and having them hold up. His sn is thedonkfish if that helps. I don't usually play tournaments, I play cash games mostly. I think my image at the table is pretty tight, granted no one has really seen me showdown a hand lately. Please any help. I know I don't post here often but this is really bothering me. Oh yeah and this is the second level of the party 40k. Blinds 75/150. That about covers it.