Crossword puzzle clue "they're made by fb's and hb's"

BED, to provide with a receptacle for sleeping

to work into a particular shape, also MOULD

PIZZA, (Italian) a flat usually round base of dough baked with a topping of tomatoes, cheese, meat, olives, etc.

MESON, a short-lived subatomic particle of smaller mass than a proton

to build an embankment to retain water