Answer:

ironman

AnswerCrossword Clue
IRONMANTony Stark's secret identity
IRONMANMarvel Comics superhero
IRONMANCertain triathlete
IRONMANArmored superhero
IRONMANTough guy
IRONMAN2008 Robert Downey Jr. hit
IRONMANSuperhero with red-and-yellow armor
IRONMANTough-guy competition
IRONMANSuperhero with energy repulsors
IRONMANRobert Downey Jr. trilogy
IRONMANAtlas, for example
IRONMANTriathlon participant
IRONMANDurable athlete
IRONMANDurable one
IRONMANSuccessful triathlete
IRONMANTriathlon entrant
IRONMANIdeal jet pilot.
IRONMANSobriquet for Lou Gehrig.
IRONMANStrong, if aging, athlete.
IRONMANTough customer
IRONMANEpithet given Lou Gehrig
IRONMANTriathlete
IRONMANTriathlon competitor
IRONMANLou Gehrig or Cal Ripken
IRONMANRobert Downey Jr. title role
IRONMANTireless one?
IRONMANRipken's nickname
IRONMANRole for Robert Downey Jr.
IRONMAN83 Gehrig's sobriquet
IRONMANTony Stark's alter ego
IRONMANFemale?
IRONMANMarvel hero with multiple M.I.T. degrees
IRONMANOne of the Avengers
IRONMANGrueling kind of race
IRONMANExceptional athlete
IRONMANAvenger in a red-and-gold suit
IRONMANTony Stark's alter ego in comics and movies
IRONMANAthlete among athletes