Question: Nova Launcher has an integration with cm9 settings like settings-->launcher

now i want to access an application through settings & i don't want any icon in app drawer..is this possible..can someone point me to a tutorial or an example..

Answer: 
I dont think its possible. Because System Settings itself is an app and you cannot push-in your contents into another app unless there's any interface available for this, which in this case Not.

The reason why cm9 has it because its a custom ROM and the developers have customly tailored its setting's section to integrate options from its supported packages at one place.
I don't think you can do that with a stock ROM, as you say Nova Launcher does it on Cyanogen.
Similar question: [Integration into android's settings](https://stackoverflow.com/questions/7444156/integration-into-androids-settings)