My transmission makes a rather defined click sound while letting off the clutch. It is not from the pedal (I have noticed that the spring mechanism on the actual pedal makes a clicking sound some times), but very distinctly comming from the engine. It is most evident while switching from 2nd to 3rd gear. Any clue?
The throw-out (clutch release) bearing can make a variety of sounds as it wears out or if it gets loose. If probably isnt a serious condition, but it naturally should be rectified. Its a cheap part, its just buried.