Memorable Texas landmark (5)
I believe the answer is:
alamo
'memorable texas landmark' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for alamo that I've seen before include "ill-fated mission" , "Famous Texan fortress" , "national monument" , "Texan battle" , "Davy Crockett's last stand" .)