How do I cancel an inactive subscription?

Alex88vr wrote:

I would like to delete-remove the entry from the list .. i mean that i no longer want to see expired subscriptions

You cannot. They will usually be automatically removed after one year. You can send feedback to Apple here:

Product Feedback - Apple

Has the charge for that subscription that was already authorized been processed? You can review your Purchase History and if you see the charge as Pending, then there is a problem with your payment method. Once that has been paid, you would have the option to cancel it to prevent it from renewing.

If the charge for the subscription shows Pending, it cannot be removed until that authorized charge has been processed. Not sure what you mean by removing the "Voice of the list".