Don't you forget it! (5)

I believe the answer is:

alamo

(Other definitions for alamo that I've seen before include "Famous battle in Texas launched by the Mexican army" , "Davy Crockett's last stand" , "Where Davy Crockett met his end" , "Famous Texan mission" , "Famous battle in Texas and John Wayne film" .)

I've seen this clue in The New York Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.