Crossword puzzle clue "material that's checked"

COAT, to cover with an outer garment

a long piece of twilled woollen cloth, usually with a chequered or tartan pattern, worn over the shoulder as the outer article of the traditional Highland dress

(short for) ammunition

ABORT, to bring forth a foetus prematurely, to cause to come to nothing

ADMIT, to allow to enter; to confess

to grow old