Inexperienced climber fighting (3)
I believe the answer is:
war
This might be a double definition.
'inexperienced climber' is the first definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'fighting' is the second definition.
(thesaurus)
Can you help me to learn more?
(Other definitions for war that I've seen before include "series of engagements" , "State of armed struggle" , "State of armed conflict" , "Open hostility" , "Strife" .)