Q: Sonce I activated the clock feature on my IPod Classic,  My battery has tobe charged a lot mor even if I am no using itcan anybody tell me how to deactivate the clock

I dont think it is the clock, most likely, your battery needs to be replaced, how old is the iPod?

Charge Cycles

A properly maintained iPod battery is designed to retain up to 80% of its original capacity at 400 full charge and discharge cycles. You may choose to replace your battery when it no longer holds sufficient charge to meet your needs.

How long does you normally leave it charging?

The main power drain is the iPod Hardisk, which will last about 36 hours of music, or about 6 hours of video, as the LCD display is also a power drain, if brightness is on max.