Full 6 seat table, HH converter not working so i edited it down. Villain has me covered. Do you check with the set with the board rainbow, but with the possibility of a J or 10 giving Villain a straight? I have been tight at 18/7 but villain is 26/10

PokerStars Game #10291094341: Hold'em No Limit ($0.50/$1.00) -

Seat 4: Villain ($181.85 in chips)
Seat 5: Hero ($174.15 in chips)

*** HOLE CARDS ***
Dealt to Hero [As Ah]
Villain: raises $2 to $3
Hero: raises $4 to $7
*bunch of folds*
Villain: calls $4
*** FLOP *** [Kh Qc Ad]
Villain: checks

Hero??