Here are the possible solutions for they're for members only clue
Answer
Clue
Relevancy
dues
Clue
They're for members only
Definition
DUE, to endue
rockbottom
Clue
With 133, the name of the band whose members appear in the theme answers. (They disbanded in 2012 after raising millions for literacy, but they're reuniting this weekend for one last concert.)
enemies
Clue
Members of the Legion of Doom, to members of the Justice League
Definition
ENEMY, one that is antagonistic toward another
aaatriptik
Clue
Members-only map book
acdc
Clue
Only one of their members was actually born in Australia