LOL... go figure you could ride him miles away and can't lead him into the barn!!!
They all have their quirks don't they?!
I just meant "stop working" by saying "release"
What works for me is to keep their feet moving, circles are harder and require more of his attention. Horses have one track minds so a lot of times they will forget about missing the buddies and focus on the work for that moment.
Let me try to say it clearer. Do 3-4 circles, stop, offer him his feed, (hopefully he'll be sick of circles and be happy to eat dinner for you) After he's done (assuming he ate quietly or at least with minimal fussing) Do 3-4 more circles and stop. Offer him the opportunity to stand quietly (this may or may not work) and try to work with his feet. If he let's you... GREAT! If not, do a couple more circles and offer him the chance to stand quietly again. Eventually he'll learn that he has a couple options... 1) fuss & spin or 2) Stand & be patient. Make sure you praise him when he did a good job and love him lots while he's in the barn. Then let him back out to the pasture!!!
Like I said, this isn't foolproof but it's where I'd start.