Subdividing part of superb ranch in Georgia (9)
I believe the answer is:
branching
'subdividing' is the definition.
The definition and answer can be both related to change as well as being present participle verbs.
Perhaps you can see a link between them that I don't see?
'part of superb ranch in georgia' is the wordplay.
'part of' indicates the answer is hidden within the clue.
'BRANCHING' can be found hidden inside 'superb ranch in georgia'.
Can you help me to learn more?
(Other definitions for branching that I've seen before include "Forking, separating" , "Dividing as a plant stem" .)