Answer:

ramparts

AnswerCrossword Clue
RAMPARTSDefensive fortifications
RAMPARTSAnthem fortifications
RAMPARTSFortifications
RAMPARTSFortifications in "The Star-Spangled Banner"
RAMPARTSFortifications mentioned in "The Star-Spangled Banner"
RAMPARTS"O'er the ... we watched."
RAMPARTSWatched by Francis Scott Key.
RAMPARTSProtective barriers.
RAMPARTSFortifications.
RAMPARTSDefensive walls
RAMPARTSWhat we watched o'er
RAMPARTSKey watched o'er them
RAMPARTSKey locale?
RAMPARTSBreastworks
RAMPARTSBulwarks
RAMPARTSKey defenses?