Don't know where to put the delay before the explosion starts, anyone know how ?

So what i want to do is to when you click an objects it plays a sound, and then it explodes, so i did that :

function clickity(playerWhoClicked)
	wait 0.5 -- The good ol' delay
	local i = 1	
	local exp = Instance.new('Explosion',game.Workspace)
	exp.Name=(i)
	exp.Position = script.Parent.Position
	script.Parent.Parent:Destroy()
	local i = (i + 1)
end

script.Parent.ClickDetector.MouseClick:connect(clickity)

And it only played the sound... but not this scripts, the is a separate script for the sound and the explosion. i need help ! and maybe give me a better working script than this