Fae, as in lowercase 'fae', usually mean any fae creature (Others, changelings, Hedge Ghosts, Fae-Touched, hobgoblins, et cetera). I would count defending members of the Freehold from harm as 'defending the Freehold', but to me acting as a protector, bodyguard, or champion is a formal role. Just showing up at a scene and joining a fight wouldn't fulfill that condition, unless there are people present that you have already sworn to protect. This is just my take, and generally I assume every group finds their own definitions (these were pretty vaguely defined).