Welcome to the forum! :welcome:
We had the same problem when I first started grooming Desmond. What I did was a TON of positive reinforcement with the clippers.
I would move the (turned on) clippers down his face (not actually cutting, just so he could feel the vibrations, give him treats, then eventually hold the handle on his nose so he could feel the vibrations and give him lots of praise/treats etc. I just did this sort of thing for short periods of time every day until he was totally comfortable with the clippers being on his nose. It helped a lot, and he does great with them now. Then again your girl has already been groomed a lot before so it is probably different for you.
I would suggest not pushing her if she really really hates it. I would work on it a little at a time (I know it's inconvenient, but it's very helpful). Try and get what you can done, but if she's fighting a lot then move on to another area and come back to it later. It's time consuming but it does make the whole process less stressful for the both of you.