Have you pulled the hood release?
While I don't own a Clio II myself, I've managed to find this guide for the Clio 5 online:
https://gb.e-guide.renault.com/eng/Clio-5/BONNET#:~:text=To%20open%20the%20bonnet%2C%20open,hand%20side%20of%20the%20dashboard.&text=To%20unlock%2C%20push%20tab%202,time%20as%20opening%20the%20bonnet.
Check whether the hood release is in the same location, and if it is, pull it.