Playing in a 36 man live tourney. 24k starting stack for most. 20k for others dependant on entry time. 20 min blinds.
I am 35, recreational casino player, play 2 or 3 times a month live.
Villain is early twenties solid player. Not seen him make any mistakes although every hand is a major decision for him.
Early in tourney I flop a set against his top pair and he pays me off. He gets moved but we meet again when down to 2 tables.
A few hands before this hand I double up after 4 betting all in with Aces and getting called by Kings. I havent played many if any other hands in the previous hour or so.
He has won a few pots showing down good hands, and won a few without showdown.
Blinds are now 1k/2k 18 players left. I have around 40k he has around 70k.
He raises to 6k from the hijack.
I call in the BB with

No other callers Pot is now 13k
Flop comes

I bet 6k
He raises to 15k
Me?
My thoughts are this, I dont normally play this hand to fold when I hit my ace and have a decent kicker. Tonight the standard of player has been better than my local casino with fewer players.
By my image he knows the minimum I have here is a good ace.
I also think if I call or raise I am becoming committed to a hand that could be miles behind.