Answer: grayed

AnswerCrossword Clue
GRAYEDShowed signs of aging
GRAYEDAged, in a way
GRAYEDBecame overcast
GRAYEDPortended a storm
GRAYEDAged distinctively
GRAYEDTended to whiten.
GRAYEDHomophone for grade
GRAYEDGot silver, as hair
grayedcontain an increasing percentage of older people
grayedbecome gray
grayede
grayedto make gray
grayedGRAY, to make grey, also GREY