I would figure out where he is coming from and try to meet up with him before he get to that spot. Just make sure you move your stand at mid-day when he is less likely to be there.
Its very possible that whatever spooked him will cause him to start showing up later. Try to set up where you think he is entering the corn and put a couple of scent bombs out so he will be a little distracted.

Also make sure you bow is drawing whisper quiet, it does not take much to spook a mature buck. If you move your stand like I suggest make sure your stand is about 20 yards from where you expect the buck to be, 5 yards is a very bad angle from a treestand and it is too close to get by with any movement or noise.

Just some suggestions, I hope this helps.

Have a great day and good luck.