Answer: alteregos

AnswerCrossword Clue
ALTEREGOSGOES?
ALTEREGOSVery close friends
ALTEREGOSPerfect substitutes
ALTEREGOSPractice psychoanalysis?
ALTEREGOSTrusted friends
ALTEREGOSInseparable friends.
ALTEREGOSConstant companions.
ALTEREGOSSuperman and Mr. Hyde
ALTEREGOSBruce Wayne and Batman, e.g.
ALTEREGOSSuperheroes often have them
ALTEREGOSInseparable friends
ALTEREGOSSignificant others?
ALTEREGOSClose friends
ALTEREGOSMany superheroes have them