Flakes (4)
(Other definitions for corn that I've seen before include "Type of cereal" , "Toe growth" , "Grain; hard skin" , "Trite jokes" , "Grain - thick skin" .)
(Other definitions for bran that I've seen before include "Horse-food in barn" , "Pieces of grain husks" , "Husks of corn" , "Refuse from grain" , "Food for horses in barn" .)
'flakes' is the definition.
(I have seen 'White flakes' mean 'snow' so perhaps 'flakes' could also mean 'snow')
This is all the clue.
(Other definitions for snow that I've seen before include "Charles Percy" , "that may arrive around Christmas time" , "Frozen precipitation" , "Wintery precipitation" , "feature of 27 [THE BIG FREEZE]" .)