I am personally against clipping because:
it negatively impacts their psyche to have their natural ability to fly removed;
it causes chest muscle atrophy over time, which will negatively impact their overall health.
I have 13 birds, all flighted. None of my birds have plucked and each have grown into confident and happy birds. When you clip your bird and they attempt to fly and fall to the ground, their personalities begin to change. They can't get away from things that put them into alert mode and they must depend on you to move them from point A to point B. To sit on a tree stand 24/7 is difficult for them. They become bored and oftentimes grumpy towards those around them.
I hope you will reconsider and make the necessary changes in order to allow him to remain free flighted. Even using a portable fan is something you could consider.
Just my 2 cents.