Crossword Genius

Cold, maybe; but there’s some warmth (3)

Ross

I believe the answer is:

war

'cold maybe' is the definition.
(a cold war is a type of war)

I don't understand how the rest of the clue works.

(Other definitions for war that I've seen before include "Fight" , "Large-scale conflict" , "Strife" , "Hostile situation" , "State of armed conflict" .)

I've seen this clue in the Evening Standard.
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