In the lower right hand corner in "My clubs", click the link that says, "more clubs >>>" It will show 당신 a list of all your clubs and under the club's name is "unsubscribe". Click it.
Go on your 프로필 and click on 'clubs'. There will be a list of every club 당신 are in. Find the club 당신 want to leave and click 'unsubscribe'. I will ask 당신 if you're sure so click 'yes'. That should help.
In the 상단, 맨 위로 right hand corner it says 'search Fanpop', 검색 the club and click on it. Once on the club scroll down a little and it should say 'unsubscribe', click that. Hope that helps :)