Carbonated sac reportedly produced by someone like Marie Curie (9)
I believe the answer is:
physicist
'carbonated sac' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'reportedly produced by someone like marie curie' is the wordplay.
I cannot really see how this works, but
'like' could be 'sic' (I've seen this before) and 'sic' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for physicist that I've seen before include "Expert in the science of matter and energy" , "One studying the nature of matter" , "To become a scientist, doctor gets a name change to the street" .)