If you clip it be REALLY careful. She looks like she's had very poor nutrition previously, and sometimes their beaks will be very brittle. Be sure the clipper blades are new and very sharp, and don't trim it down to the normal length, just enough that it won't likely break on its own with normal use. She will wear the rest down on her own.
Yes I agree just a tiny. Its light enough you should be able to see the quick and avoid getting close to it. A good worming or two and love and food she will be stunning!