Weather-wise, an incoming cold front would make it exciting (8)
I believe the answer is:
climatic
'exciting' is the definition.
Although both the answer and definition are adjectives, I can't understand how they can define each other.
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for climatic that I've seen before include "of prevailing conditions" , "Like the weather" , "Relating to the weather" .)