Crossword clues for Jack up at night, once 4 lettersAnswerCluePAARLate-night JackPAARLate-night host Jack of the fifties and sixtiesPAARPioneering late-night host JackPAAROne-time late-night host JackPAARLate-night great JackPAARLate night pioneer JackPAAREarly late-night host JackPAARLate-night TV pioneer JackPAARJack up at night, oncePAARLate-night talk pioneer JackPAARJack of late-night talkPAARJack of late-night TVPAARJack up late at night, years agoPAARJack of early late-night TVPAARJack of old late-nightPAARJack who pioneered late-night talkPAARJack who preceded Carson on late-night TV
