Sounds like the clutch master cylinder. It takes about 10 min to uninstall and re install. Then about 3-5 mind to bleed the clutch. No need for slave cylinder if its not bad, the new master cylinder will not have enough pressure to break your old slave cylinder.

check to see if your clutch pedal is a little juicy, the inner seal on the master cylinder does go out and get it in the car, pull back the carpet and see if its wet. Just remember while changing the shit brake fluid WILL mess up your paint.