Is your creak inside or outside the vehicle. The clutch pedal bushing sqeaks as mentioned above. You can just remove the factory return spring and call it good. The clutch pedal will return without any issues without a spring. I have run the clutch on my 2000 T4R and my '98 Tacoma like this for years.
If your creaking is outside the vehicle, it is your clutch fork inside the bell housing of your tranny. This is a common problem, just like the notorious throwout bearing ringing noise. I have sprayed white lithium grease into the bell housing where the clutch fork goes into it. This solves the problem for about 2 weeks, then the grease burns off. I have just accepted the noise until the clutch needs replaced.