Yes—the normal edge markings strongly suggest the film was developed properly. Those markings are pre-exposed by the manufacturer and should appear if development worked.

A roll that is otherwise clear usually means the film received little or no image exposure in the camera. The most likely explanations are:

• the wrong cassette was developed (an unexposed roll), or
• the camera didn’t expose or transport the film correctly.

The clear leader does not point to a chemical failure if the edge printing is present. Your chemical test also supports that the developer and fixer were working.

Most likely, the issue is with the camera rather than processing. Check:

• whether the shutter actually opens,
• whether it stays open for longer shutter speeds,
• whether speeds change appropriately, and
• whether the take-up spool/film transport is really advancing the film.

If those checks fail, you’ve found the cause. In short: normal edge markings + clear film = development probably fine, camera exposure/transport problem more likely.