NL50 Flop a set vs. crazy overbetting villian.

[JROK777]

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

Stack sizes:
UTG: $0
UTG+1: $431
CO: $111.10
Button: $10.50
SB: $68.40
Hero: $98.20

Pre-flop: (6 players) Hero is BB with 9[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/spade.gif[/img]
UTG+1 calls, CO folds, Button calls, SB calls, <font color="#cc0000">Hero raises to $3</font>, UTG+1 calls, Button calls.

Flop: 9[img]/images/graemlins/diamond.gif[/img] 5[img]/images/graemlins/club.gif[/img] 8[img]/images/graemlins/heart.gif[/img] ($9.5, 4 players)
<font color="#cc0000">Hero bets $7</font>, <font color="#cc0000">UTG+1 raises to $14</font>, Button folds, <font color="#cc0000">Hero ???

Villian is a 72/12/2.5 M-A-N-I-A-C. He reraised me earlier w/Q7o and called my 4 bet all in. This was the ideal spot to stack this clown. Villian could have anything here. I was a little afraid of letting him catch a str8. I think Hero would have to pay off a turn shove from this guy. What's the best way to play here?