So that clone has no hormone gel? Odds are it won't root. I've done some in water without doing anything and they rooted but it's rare and takes forever.
Try taking the clone at or close to 21days flower if ya want a good chance of rooting and regeneration. Just wait till day 21 and then defoliate and snag clones. More than one so ya got better odds.
I just took some 7wk clones from the DP. My others are failing so I took more. If they don't root I'll regenerate the stump. This do isn't getting away..lol