Collocations for crumb - noun

biscuit (esp. BrE), bread (usually breadcrumbs), cake, cookie (AmE), cracker, food

brush, sweep, wipe
She brushed the cake crumbs off the table.
I swept away the crumbs.

leave
He didn't even leave any crumbs on his plate.

drop, scatter
She bit into the roll, scattering crumbs.

crumb of
a few crumbs of bread