Call the raise. MP can definitely be ISOing here with a wide range after he incorrectly assumes you are done with the hand. The problem with a 3bet OTF (which is what you did) is now we are ISOing the MP so his continuing range is going to be much stronger. We want to keep his range as wide as possible here, especially when our hand is vulnerable.
The Q and T of
block a lot of potential flopped FD's. So we would rather see this flop texture over a low monotone one.
Flop check is standard - betting is not good.