You bleed from the slave cylinder which is located on the gearbox, just behind the radiator hoses.
Has a bleed nipple (yes I said nipple) that you open & bleed with just like you would do the brakes. Ie take lid off master cylinder, fill with fluid, pump pedal & then hold down, release bleed nipple, tighten bleed nipple, release clutch pedal - repeat - adding more fluid to the master cylinder as required.
Its usually the slave that goes, but I you really ought replace both master & slave at the same time. When mine went, I replaced the slave, then 20kms later the master blew
