how do you unanchored a part when clicked?

local clickDetector = Instance.new("ClickDetector")
local part = game.Workspace.Part
part.Parent = clickDetector

script.Parent.MouseClick:Connect(function ()
       part.Anchored = false
end)

This is a easier and simpler method.

You need to identify a proper function. A basic one would be

function onClicked()

Put that at the beginning of your script.

There's also another flaw with the script, you have ClickDetector right in the middle, without identifying it. Identifying a ClickDetector would be:

local clickDetector = script.Parent.ClickDetector

You must also have a part with two aspects. A ClickDetector, and a Script. Do not put the script in the ClickDetector, or the ClickDetector in the script, they go in the part.

That makes it easier to unanchor your part like this:

script.Parent.Anchored = false

Hope this helps you.

Usally when I use click detectors i fire events with local scripts in starter gui. Create a local script in starter gui, and put a remote event in replicated storage. Your click detector should be under the part, and you can removethe old script you had.

local clickDetector = game.Workspace.Part:FindFirstChild:("ClickDetector")
local event = game.ReplicatedStorage.RemoteEvent

clickDetector.MouseClick:Connect(function()
event:FireServer()
end)

then have a script in workspace and put this in.

local event = game.Workspace.RemoteEvent
local part = game.Workspace.Part

event.OnServerEvent:Connect(function()
part.Anchored = false
end)

hope this works!

Make sure the ClickDetector and the script is under the part you want to be unanchored.

This is how I would do it:

local part = script.Parent --gets the part to be anchored/unanchored
local anchored = true

part.ClickDetector.MouseClick:Connect(function()
    if anchored then --checks if part is anchored
        anchored = false
        part.Anchored = anchored --turns anchored into false
    else --if unanchored then
        anchored = true
        part.Anchored = anchored --turns anchored into true
    end
end)

This way, you can anchor/unanchored the part over and over again. ;)

Simplest way, the rest are fine and good but are way more complicated. This one is easier to understand and learn in general.

-- Insert Part into Workspace
-- Insert ClickDetector into Part
-- Insert Script into ClickDetector and type the below out

script.Parent.MouseClick:Connect(function()
    script.Parent.Parent.Anchored = false
    script.Parent:Destroy() -- Destroying ClickDetector since part already un-anchored. Remove this line if you want to keep ClickDetector
    print("Works Fine Dude") -- Making sure it works
end)

all of these methods work btw