PokerStars No-Limit Hold'em, $1.00 BB (8 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: FCP)

CO ($17.65)
Button ($23.60)
SB ($174.40)
BB ($114.85)
Hero ($104.10)
UTG+1 ($111.80)
MP1 ($103.50)
MP2 ($172.25)

Preflop: Hero is UTG with A , A .
Hero raises to $4, 5 folds, SB calls $3.50, 1 fold.

Flop: ($9) 9 , 4 , 2 (2 players)
SB checks, Hero bets $6, SB raises to $18, Hero calls $12.

Turn: ($45) Q (2 players)
SB bets $43, Hero ?

Just sat down at the table one rotation ago. No reads or stats on villain.

Should we even be calling the flop check raise? How about three betting here? Just bet folding seems weak, but I dunno.

Once we get to the turn and villain fires a PSB, it's a clear fold, yes?

I'm fine with a 3bet or a call on the flop because we have position. Turn is probably a fold, as he's usually got a set or flush by now and you really don't have a reason to believe he'd do this with air, especially as you raised UTG.

I think it's a clear fold unless you have a read on him

I have no problem with the fold on the flop and a for sure fold on the turn. People tend to overplay aces and most of the time call huge bets when they know that they are no good. So fold them and live to play more hands.