Seat Leon 1.9 TDI 81 kW 1M clutch pedal did not return

hey, my father is on the road today with the Leon year 2001, he just tells me that the clutch pedal didn’t come back once and he almost didn’t get away. He then got it out with his foot again. Further it starts to rattle, with running engine, when you press the clutch pedal, so from half the clutch path. I don’t know yet if he can insert the first gear and drive away … he doesn’t believe I tried anymore … someone no idea? clutch defective or n I’m looking forward to towing the ropes.