September 1854 battle in the Crimean War (4)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
alma
(Other definitions for alma that I've seen before include "One's university" , "The . . . . Mater is the old school" , "Battle of the -- was in the Crimean War" , "Loving girl" , "dancing girl" .)