In a large bowl, combine flour, 1/4 c. brown sugar, and baking powder.
Cut in shortening til crumbly.
Combine egg, milk, and orange zest.
Stir into crumb mixture until just blended.
Turn onto a lightly floured surface, and knead 3-4 times. Do not over-knead.
With your fingers, carefully spread it into about a 14x12 inch rectangle.
Spread the fig mixture evenly over the dough, leaving about 1-inch on the sides.
In a small bowl, combine the remaining 1/4 c. brown sugar with the cinnamon.
Sprinkle the fig layer evenly with the brown sugar mixture and the walnuts.
Roll up, jelly-roll style, starting with the shorter side, and cut into 10 pieces, each about 3/4-inch wide.
Place in a lightly greased round cake pan, clustering them toward the middle (they'll expand to the edges).
Bake at 400 degrees for 18-22 minutes, or until golden brown at the edges.
Remove from oven and allow to cool on a wire rack for about 5-7 minutes. Serve warm, with glaze.