The only thing I have found is under “Contacts”>“Other Contacts” - all of the addresses/contacts I want to delete are there, but when I try to delete any of them I get an error because they are read only.
Yes as @Gary advised in the below thread, the latest V10 eM Client "now shows the Google account read only “Other Contacts” which as you said if you no longer want to see them in eM Client, you have to go online and delete them and then run the repair in eM Client to re-sync your contacts to your online account.