If you stop an employment arrangement on or after turning 60, you're able to access the super you have got up until that point.
If you decide to return to work, you can still access the super you had before you returned to work. But for any contributions from your new employer, you'll need to wait until you leave that job and/or permanently retire before you can access that super.
Once you turn 65, you generally have full access to all your super, whether you're working or not.