Joe Lieberman’s middle name ISADORE [this is the funniest clue of the year! Crossed with "Chubby Checker’s real first name" is icing on the cake.]
Not kosher TREF [grew up with and educated mostly by Jews, but never heard this word before --- learn something every day]
Online identification SCREENNAME [another thing I learned --- only knew this term as it relates to actors]Nothing particularly clever, no theme, but I appreciated the challenge --- and only 27 blocks.
Three grins = Loved it; Two grins = Enjoyed it; One grin = A bit bland for my taste; One teardrop = No fun