Cake put away in France once cut (6)
I believe the answer is:
gateau
'cake' is the definition.
(gateau is a kind of cake)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for gateau that I've seen before include "rich food" , "(French?) cake" , "Something French for 22?" , "Cake (from the Black Forest?)" , "Elaborate cake" .)