1. Open iTunes.
2. Select the song you want to remove lyrics from.
3. Click on the "Edit" button in the top left corner of the iTunes window.
4. Select "Song Info" from the dropdown menu.
5. Click on the "Lyrics" tab.
6. Delete the lyrics in the text field.
7. Click on the "OK" button to save your changes.
Now the lyrics will be removed from the song on iTunes.