Villain has a flush.
Since you hold the J
T
and the A
9
8
are all on the board Villain would have to have played the K
or Q
with a suited rag to beat you since all the connectors are accounted for.
Call or raise is read dependent here now, good LAG's usually only play the suited connectors against the raise.
I don't think I am folding the 3rd nuts getting better than 2 to 1 on the call.