Crosswordiee.com

% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for First responder, briefly:

EMT: First responder, briefly
EMTS: First responders, briefly
EMS: First responders, briefly
EMTS: Certain first responders, briefly
ERS: First responders' destinations, briefly