Would you be allowed to bring her out during the clinic and just lead her around and stand with her to watch? If it doesn't go well you can always put her back in the stall. It might be a good indicator as to how she behaves in a show/clinic situation. If she has shown it should really be no big deal to be around other horses.
I like her!
thank you! i did kind of think of this, but i didnt want to be disruptive to the clinic if anything happens. i will think about it, it is a good idea and im sure she would be fine. if i do get her after the clinic, or decide not to walk her around at the clinic, we have a horse show on our property a few days later that i was going to walk her around at and possibly even show her in hand or in a walk/leadline class or something.