Ration (out) (4)
I believe the answer is:
mete
'ration out' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for mete that I've seen before include "Apportion" , "boundary" , "Administer or bestow, as in small portions" , "Allot" , "Dish (out)" .)