if its spigot noise will go when clutch is fully down
Are you sure that's the right way round? I would have thought with the clutch pedal released the crank/spigot bush and the gearbox input shaft would effectively be locked together via the clutch plate/pressure plate. therefore there would be no relative movement between either . I would expect worst case for spigot bush to be engine running, clutch depressed in gear at standstill?