Closed to making changes in China’s geographical inequality (8,7)
I believe the answer is:
postcode lottery
'china's geographical inequality' is the definition.
I can't tell whether this defines the answer.
'closed to making changes in' is the wordplay.
'making' indicates anagramming the letters.
'changes' becomes 'pottery' (I can't explain this - if you can you should believe this answer much more).
'in' indicates putting letters inside.
'closed'+'to'='closedto'
'closedto' with letters rearranged gives 'stcodelo'.
'stcodelo' placed into 'pottery' is 'POSTCODE LOTTERY'.
Can you help me to learn more?
(Other definitions for postcode lottery that I've seen before include "Description of varying benefits of living in different areas" , "outcome varying by area" .)