The FCP help says to ripple delete a clip in the timeline you select it and delete it. When I do that it doesn't ripple - I get a hole in the time line.
How can I do a ripple delete of a clip in the timeline?
That "hole" is called a "gap clip". The only reason that would happen is if you had the position tool selected (for whatever reason). Tap A and try again.
OR you're not using the ⌫ key but rather the ⌦ key.