Answer: nightmare

AnswerCrossword Clue
NIGHTMAREIncubus
NIGHTMAREFrightening ordeal
NIGHTMAREBad dream
NIGHTMAREDread in the dark.
NIGHTMAREFrightening experience.
NIGHTMAREBad dream.
NIGHTMAREWorry
NIGHTMAREPaul Revere's horse, maybe
NIGHTMAREConveyance to the party
NIGHTMARETraumatic experience on Elm Street
NIGHTMARETerrible ordeal? Give them a grin somehow (9)
nightmarea bad dream
nightmareharrowing event
nightmarebad dream