1)
What is the definition of "Migrash"?
1.
Rashi: 'Migrash' is an open space around the town for esthetics, in which one may not build a house, plant a vineyard or plant seeds.
2)
Why does the Torah insert the (otherwise superfluous) words "Titnu la'Levi'im"?
1.
Ha'amek Davar: To teach us that, if the town does not have a Migrash', then they are obligated to create one before giving it to the Levi'im.
