Mix shortening, brown sugar, eggs, banana, baking powder, baking soda, cinnamon, salt and cloves with an electric mixer until smooth.
Add flour and pecans and fold into mixture until well mixed.
With a ¼ cup cookie scoop, drop dough onto greased cookie sheets about 2 inches apart.
Freeze dough about 5-10 minutes.
Heat oven to 375°.
Bake 15-20 minutes, or until done.
Rotate cookie sheets on oven racks every six to seven minutes of baking time.
Cool completely.
Frost with Lemon Buttercream Frosting.
Sprinkle iced cookies with additional lemon zest, if desired.