Type of cabbage (7)
(Another definition for collard that I've seen is " Cabbage is the answer".)
'type of cabbage' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for savoy that I've seen before include "Cabbage; hotel" , "area of France" , "Variety of cabbage" , "Type of cabbage - London theatre" , "Dense cabbage" .)