PP 50NL, 88 hits a set, but...

[kslghost]

Party Poker
No Limit Holdem Ring game
Blinds: $0.25/$0.50
6 players
Converter

Stack sizes:
UTG: $36.10
UTG+1: $53.10
CO: $56.10
Button: $127.95
Hero: $85
BB: $50.20

Pre-flop: (6 players) Hero is SB with 8[img]/images/graemlins/club.gif[/img] 8[img]/images/graemlins/spade.gif[/img]
<font color="#cc0000">UTG raises to $1.1</font>, UTG+1 calls, 2 folds, Hero calls, BB folds.

Flop: A[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/diamond.gif[/img] ($3.8, 3 players)
<font color="#cc0000">Hero bets $2</font>, UTG folds, <font color="#cc0000">UTG+1 raises to $6</font>, <font color="#cc0000">Hero raises to $14</font>, UTG+1 calls.

Turn: 4[img]/images/graemlins/heart.gif[/img] ($31.8, 2 players)
<font color="#cc0000">Hero ???

Villain is a tight relatively nitty player, who tends to be moderately agressive post flop.

<font color="red">My question is on the turn, should I bet out to protect against the flush? Or, if I believe villain is on an ace, check and induce a bluff while increase my chance of being called on the river if I am ahead?

My difficulty here lies in the fact that I am quite sure villain has a strong ace in this spot. If I bet, he thinks I have the flush and folds. Can I induce more money out? </font>