Answer:

chinstrap

Answer	Crossword Clue
CHINSTRAP	Helmet holder
CHINSTRAP	Part of a football helmet
CHINSTRAP	Football helmet part

CHINSTRAP	Shako attachment
CHINSTRAP	Helmet part.
CHINSTRAP	Part of a busby
CHINSTRAP	It's snapped on a gridiron
CHINSTRAP	Football helmet attachment

Crossword

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