Saintly contributor to military history (4,2,3)
I believe the answer is:
joan of arc
This might be a double definition.
'saintly contributor' is the first definition.
The definition suggests a singular noun which matches the answer.
'military history' is the second definition.
The definition suggests a singular noun which matches the answer.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for joan of arc that I've seen before include "Orleans girl" , "burning visionary?" , "French heroine" , "She was known as the Maid of Orleans" , "national heroine" .)