A list of supermarkets with links to their pandemic policies are below – they are changing so fast you need to click on the link.
Asda – special hours for elderly and NHS. Good information on their website for self-isolators as well.
Iceland – special hour for elderly
Tesco – special hours for elderly and NHS workers
Convenience Stores in Corstorphine
These are listed on the map below or here https://goo.gl/maps/F3ePLfEVZjte777G9