Having trouble welding and positioning weld, any ideas?

script.Parent.ClickDetector.MouseClick:Connect(function(plr)
	if plr.CharacterAppearanceLoaded then
		local Clone = script.Parent:Clone()
		Clone.Parent = plr.Character
		Clone:ClearAllChildren()
		Clone.CFrame = plr.Character.Torso.CFrame

		local weld  = Instance.new("WeldConstraint")
		weld.Part0 = Clone
		weld.Part1 = plr.Character:WaitForChild("Torso")
		Clone.Anchored = false
		Clone.CanCollide = true
	end
end)

Here is my code, when I test the script there are zero errors but it does not work. Basically what the script does is positions the clone to the players torso.