Essential Sound

You pay for the use of the programs with your CC license, but the use of stock files is a separate licensing fee. For using Stock files, if there's a fee for them, you must pay that to license the use. The same with any other Stock library out there. Now, some of the Adobe Stock files are available for free, and you can sort for that.

But if there's a fee listed, that must be paid to license the use.

Neil

You have 3 choices.

Use low quality audio for preview, review and approval. (not for publication)

Buy the audio file

or

Delete from timeline.