Answer: clarkkent

AnswerCrossword Clue
CLARKKENTHe debuted in Action Comics in 1938
CLARKKENTHe grew up in Smallville
CLARKKENTMild-mannered alter ego
CLARKKENTLois Lane's coworker
CLARKKENTSuperman's alter ego
CLARKKENTComics character with a secret identity
CLARKKENTCharacter known to frequent telephone booths
CLARKKENTLois LANE coworker
CLARKKENTNoted alter ego
CLARKKENTSuperman