I can recommend Boxpark, (George St), for food.
Fabulous selection of street food from around the world.
https://www.boxpark.co.uk/croydon/
Usually for the rest of the country November the 5th is Bonfire night, however in Croydon, it can occur randomly, such a wonderful sight to see Croydon up in flames, the locals really put on a show...
Tonight could be your lucky night....