Answer:

ESC

AnswerCrossword Clue
ESCPC key
ESCPC panic button
ESCComputer key
ESCKey in the top left, usually
ESCKey used to hide NSFW content
ESCKey for closing a window, say
ESCKey on a Packard Bell, e.g.
ESCLetters with a tilde underneath
ESCYou can press it instead of clicking Cancel
ESCButton pressed in a moment of panic
ESCKey for naughty surfers?
ESCNSFW key-at-the-ready
ESCIt's pressed in the corner
ESCUpper-left key
ESCPC "oops" key
ESCPC's panic button
ESCLaptop's panic-button
ESCEmergency PC key
ESCPC bailout key
ESCUpper-left PC key
ESCBailout key
ESCTop-left PC key
ESCExit-the-program key
ESCUpper-left key, often
ESC"Exit full-screen mode" key, often
ESC"Never mind" key
ESCKey in a corner
ESCPC's undo key
ESCKey to getting out of trouble?
ESCCorner key on a PC
ESCIt's left of "F1" on a PC keyboard
ESCPC "Go back!" key
ESCCorner key
ESCImportant PC feature
ESCKey that takes you back
ESCKey to getting out of a jam?
ESCCorner PC key
ESCF1 neighbor, on PCs
ESCMtge. subject
ESCPC key near F1