How can I fix this Clone Script?

wait(1)

local player = game.Players.LocalPlayer
local Mouse = player:GetMouse()
local humanoid = player.Character.Humanoid 
local s = humanoid:LoadAnimation(game.StarterPack.HandSign.Animation)





Mouse.KeyDown:connect(function(key)
game.Players.PlayerAdded:connect(function(player)
player.CharacterAdded:connect(function(character)
    local CharacterChildren = character:GetChildren() 
    for i,v in pairs(CharacterChildren) do
    local Clone = v:Clone()
    if key:lower() == "h" and humanoid then
    s:Play()
    player.Character.Humanoid.WalkSpeed = 16
    wait(.7)
    Clone.Parent = game.Workspace.Character 
    end
    end
end)

I'm trying to make the player play an animation, wait .7 seconds, then a clone to spawn right behind him when the player presses h. But I tried like 20 times. Now I'm here asking for help. Can ANYONE help? No one is helping me.