The term 'Barley Beard' can be broken down into two crossword solutions: ARISTA (6 letters) and AWN (3 letters). ARISTA is a type of grain spike, which is the part of the barley plant that holds the grains. AWN is the long, stiff hairs that grow on the surface of the barley spike. Together, these two words form the term 'Barley Beard, ' which is a term used to describe the hairy appearance of the barley spike.