Ground grain (5)
'ground grain' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for meal that I've seen before include "Food ground up" , "dinner, maybe" , "Breakfast, lunch, supper" , "Lunch or dinner, say" , "Eg, lunch" .)
'ground grain' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for flour that I've seen before include "Delivery from miller" , "Main ingredient of bread" , "Fine-ground grain" , "Powdered grain" , "Dusty white stuff" .)