It says "Remove from circle" on their profile page bottom right. To remove them from your fan list just block then unblock them. Don't be sorry, fair question. And welcome!
Sorry, bottom left...
bottom left .............that is.
Got here to fix it before you did! Lol :)
Delete system 32.
click on them and go to the bottom on the left and remove them. Someone been upsetting you?
You ban them.<br />
Go to your block list and add them. :)