Business Republican will visit within Springfield, perhaps (8)
I believe the answer is:
industry
'business' is the definition.
(I know that industry is a type of business)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for industry that I've seen before include "Hard work" , "Branch of trade" , "Commercial enterprise, the making of goods, say" , "Craft" , "Business" .)