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You'll struggle, render has more cement than mortar and is hard as fuck usually. On the plus side, because of this added strength, hopefully it won't crumble away if you do manage to get a nail into it.
This is all reliant on the render being in good nick/still bonded to the substrate tho.
This guy has all the answers it seems. And agrees that you may struggle to get clips into render.
https://www.youtube.com/watch?v=I2C-g8H8PT4
Can I hammer cable clips into a rendered wall / is there a risk of it dislodging large chunks and falling off? I need to secure a flappy TV aerial able.