I have a clip on my P3AT - however, you can't carry a DAO gun with no safety in condition 1 with a belt clip that exposes the trigger. When I use this clip I do not have a round chambered.
Sure you can. A lot of folks do so without shooting themselves. Many carry Kel Tecs in their pocket without a holster. I don't recommend that method because the pistol will likely change its position. A clip will keep it in the same position. With any pocket carry, I would highly recommend nothing else in the pocket. Nothing but the weapon and its holster, or the pistol on the clip. When drawing it, make sure to keep your finger out of the trigger guard.
I have carried a P3AT with the clip and did not particularly like it. Now use a holster (and yes, it does cover the trigger). Personally, I think my PF9 a bit too large to carry with the clip.
It boils down to individual preference.