Plan of attack with Mid Pair in Blind Battle?

[Tryptamean]

Villian is 41/26/2 over 175 hands

PokerStars 10/20 Hold'em (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Preflop: Hero is SB with 7[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/heart.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">Button raises</font>, <font color="#CC3333">Hero 3-bets</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">Button caps</font>, Hero calls.

Flop: (9 SB) 5[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/diamond.gif[/img], T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero?