Underpair on monotone flop

[Mossberg]

Villain was unknown. I usually raise preflop, I'm not sure why I chose not to here. Anyways, what's your line? If I were to raise preflop, lead the flop, and get raised, how should I proceed with this opponent (on a club turn in particular)?

Limit: $3/$6
5 players
Converter

Pre-flop: (5 players) Hero is BB with 3[img]/images/graemlins/club.gif[/img] 3[img]/images/graemlins/heart.gif[/img]
UTG calls, 3 folds, 3 folds, Hero checks.

Flop: 2[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/club.gif[/img] T[img]/images/graemlins/club.gif[/img] (2.33SB, 2 players)
Hero ___________?