Sorry to tell you, it is not the gear linkage you are looking at in the pic. iIt is the clutch slave cylinder, and you need a new one. I do not think it will repair. If you search on here, there will be info I am sure, or someone will be here and be able to tell you how hard or expensive the job may be. If you can, and you are going to buy a new one from a real shop (not online) take the old one with you as reference, or send pictures to an online seller if you do so that way. Make sure you get the correct one- I am not sure if there is only one type.I don't think they are very expensive. Download the eLearn manuals off here if you have not done so already, and have a read. Hope you can fix it OK!