Answer:

grayed

Answer	Crossword Clue
GRAYED	Showed signs of aging
GRAYED	Aged, in a way
GRAYED	Became overcast

GRAYED	Portended a storm
GRAYED	Aged distinctively
GRAYED	Tended to whiten.
GRAYED	Homophone for grade
GRAYED	Got silver, as hair

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.