I have been finding some on Ella the past couple of weeks. She use to be so easy to groom, but these are making it a problem. Again in armpits!

She is happy for me to groom her and usually just lays on her back, but these few are a problem.
Am I better off getting someone to clip these out?, or to persevere? I was also lookig at detangling sprays, I take it they wont get rid of the matted lumps?
I did wonder if it was the equafleece, (I have read this on a couple of previous threads), but once gone, I could make sure they don't get bad again. iyswim!!
I dont have any clippers at the mo!