If the tick is the same in any gear, guessing it may have to do with the throw out bearing. If you are only pushing in on the clutch about 1/2", and it stops, I'd say you need to adjust the pedal travel. You're not saying how much free travel you have. As mentioned before, it is 1-1/8" of free travel. And that free travel is measured from the pedal stop, (where the pedal rests on the foot platform) in a forward horizontal direction, until you feel it make contact.
Just sounds like the throw out bearing is riding the fingers of the pressure plate. You should be able to look up underneath and see it. Although you will probably need a flashlight, or trouble light to see it.