Greg,

your comment refers to a future board pair and 3 clubs. That's why I brought it up again.

Discussion:
If you 3-bet and get capped, I'm in the "he's got a set, or two pair" camp along with you. But a mere checkraise can be alot of things, especially with 3 to the flop on a relatively ragged board against the preflop raiser who appears likely to have whiffed the flop.