Combine the raisins, currants and dates in a large heat-proof bowl. Pour the hot tea over the fruit. Add finely grated zest and all the juice from the lemon and the orange. Cover the bowl and set aside for 1 hour.
Butter a 9"x5" loaf pan, or spray with cooking spray, and line with parchment paper. Preheat the oven to 325 °F.
Add the brown sugar, ¼ cup of honey and the egg to the soaked fruit and mix to combine. In a separate bowl, whisk together the flour, baking powder, salt, baking soda and spices.
Add the wet ingredients to the dry ingredients and stir just until combined.
Pour the batter into the pan and smooth it out. Bake until a toothpick inserted in the center comes out clean, about 1 hour.
While the cake bakes, stir together the whisky and the remaining 2 tablespoons of honey.
As soon as the cake comes out of the oven, brush the whiskey mixture over the top of the loaf. Use all the glaze, it will absorb as the cake cools. Cool the loaf 20 minutes before removing from the pan.
Cool completely before slicing.