The age and lifespan of a clone was recently discussed here
If I got it right the conclusion is: Cloning is not setting back the biological clock of a clone and they all are going to die at once (or earlier) when their lifespan is spent. It doesn’t matter for the specific tree you are planting cause the lifespan of a variety is very long compared to a human lifespan.
Because of the long lifespan of a variety you could see clonal propagation as rejuvenating. But in fact that is not true for the variety itself, you only create a new tree that can then live for a period I would call “lifespan of a tree”. But there will come a time when the variety dies and propagation by cloning is no longer possible.
Thats what Andrew said in the link above. I hope I got it right.