in all dirty bulking will not make u have sustained energy throughout the day. its always best to clean bulk. we're not in the 80's, where dirty bulking was on the rage...
U could only see your abs around 10%bf or lower. They are really defined around 6-7%bf. U could tone them by doing ab workouts 2-3x a week. U will need to have a cutting diet and do cardio at least...