Word before "Street" or "seed" (6)
I believe the answer is:
sesame
(Other definitions for sesame that I've seen before include "Seed or oil used in cooking" , "Plant yielding seeds used for flavouring bread" , "Source of seed and oil" , "Open . . . . . . is a magic phrase to gain entry" , "Open . . . . . . cries the magician" .)