shielder(n = noun.person) defender, guardian, protector - a person who cares for persons or property;
is a kind of preserver
has particulars: admonisher, monitor, reminder, bodyguard, escort, champion, fighter, hero, paladin, chaperon, chaperone, custodian, keeper, steward, fire-eater, fire fighter, firefighter, fireman, foster-parent, foster parent, guard, keeper, law officer, lawman, peace officer, patron saint, peacekeeper, tribune, watchdog
Derived form verb shield₁