Answer: fracture

AnswerCrossword Clue
FRACTUREStress ..
FRACTUREReason for a supporting cast?
FRACTUREBreak
FRACTURECrack
FRACTUREHairline problem?
FRACTUREBreak.
FRACTURESkiing hazard
FRACTUREBone break
fractureA crack or break in a hard object or material, typically a bone or a body of rock
fractureto break (to shatter or damage)
fractureThe cracking or breaking of a hard object or material
fractureA diphthong substituted in this way
fractureThe physical appearance of a freshly broken rock or mineral, esp. as regards the shape of the surface formed
fractureThe replacement of a simple vowel by a diphthong owing to the influence of a following sound, typically a consonant