Small seed (5)
(Other definitions for grain that I've seen before include "Cereals" , "Small hard seed of corn etc" , "basis for whisky" , "little salty bit" , "Small piece of sand" .)
'small seed' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ovule that I've seen before include "Egg cell" , "Undeveloped seed" , "Part of plant ovary which becomes seed" , "Part of seed plants" , "Immature ovum" .)
'small seed' is the definition.
(I've seen this in another clue)
This is all the clue.