Such as casing sculptor's grinding down (7)
I believe the answer is:
eroding
'grinding down' is the definition.
The definition and answer can be both related to change as well as being present participle verbs.
Perhaps they are linked in a way I don't understand?
'such as casing sculptor's' is the wordplay.
'such as' becomes 'eg' (short for 'exempli gratia', 'for example' in Latin).
'casing' indicates putting letters inside (I've seen this in other clues).
'sculptor' becomes 'rodin' (Auguste Rodin was a French sculptor).
'eg' placed around 'rodin' is 'ERODING'.
Can you help me to learn more?
(Other definitions for eroding that I've seen before include "chipping away" , "Wearing away with time" , "Gradually wearing away, rock say" , "eating away" .)