preflop call isn't too terrible, I'd call it "meh" or marginal. the beauty of playing 53s is you know that you need to flop gin otherwise, its usually fairly easy to get away from.
As played, c/r is fine because most players will regard a c/r as a flush draw so you can get a crap load of value from all pockets and pairs on a brick turn.
Unfortunately, turn isn't a brick
But good news is, its an Ace
Bad news is, the original preflop raiser folded to your c/r and ANOTHER player called the check raise so I doubt that UTG was floating with AQ/AJ type hands hoping to hit an Ace
So, UTG's range should be overpairs (which will hate the ace), sets (which we crush), and flush draws (which crush us)
Adding everything up, I think we check turn to pot control and then b/f river. That is the line that prevents us from getting stacked by an overflush (which will be a significant portion of V's range) and likewise we still extract value from 2p, sets, and straights. Obviously another spade kills our action but I'm not too worried about that. 80% of the time that's not going to happen.
V isn't going to turn his made hands into bluffs here since we can easily be going for another check raise. So if V bets turn I think we can c/f. I mean, V isn't going to be floating our flop c/r with A
K
type hands so he isn't going to show up here with big ace flush draw hands. It should be exclusively sets, 2p, straights, and flushes.
So, check turn, b/f river