Is the clicking close to normal position or or close to the floor?
If it is the first case I would check out the cruise control switch. it is located just under the knee-panel. If you crawl under the steeringwheel, and check on the right side of the clutch pedal, 3 inches above the rubber plate you will find it.
try to press down the pedal and just try to engage the switch with your finger. It shouldn't make a lot of noise, just a slight click. if it is noisy, you should probably change it. does you cruise control works? and does it release the accelerator when you press the clutch pedal? these are two of indicators that the switch is out.
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longing hard to get my hands on one