Grain (6)

'grain' is the definition.
(I know that grain can be written as cereal)
This is all the clue.
(Other definitions for cereal that I've seen before include "Grain used for food" , "Maize, rye or the like" , "Rye, for example" , "Grain crop" , "Relating to grain" .)
'grain' is the definition.
(I know that oat is a type of grain)
This is all the clue.
(Other definitions for oat that I've seen before include "Cereal (singular)" , "Basis of porridge" , "Food grain" , "Cereal grass" , "Cereal plant" .)
'grain' is the definition.
(I know that rye is a type of grain)
This is all the clue.
(Other definitions for rye that I've seen before include "Cereal grain" , "Hard liquor" , "Cereal plant; whisky" , "One of Cinque Ports" , "Cereal used for making whiskey" .)
'grain' is the definition.
(I know that corn is a type of kernel)
This is all the clue.
(Other definitions for corn that I've seen before include "Hard growth on foot" , "digital growth" , "Something unoriginal - cereal plant" , "Cereal; grain" , "Grain on a toe?" .)
'grain' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for oats that I've seen before include "Porridge ingredients" , "Grain for porridge" , "Grains or porridge" , "Grains used as food and fodder" , "Food crop" .)
'grain' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for seed that I've seen before include "Tennis player; germ" , "one very much fancied" , "Plant reproducer" , "From which things grow" , "Beginning; sow (land)" .)
'grain' is the definition.
(I know that wheat is a type of cereal)
This is the entire clue.
(Other definitions for wheat that I've seen before include "food plant" , "cereal's required" , "Grass whose grain is used to make flour" , "Bread ingredient" , "Cereal grain" .)