A very common occurrence with the Clio and other Renaults. In many vehicles, the dipstick tube can be removed and should be possible on your vehicle. If so, just remove the tube from around the dipstick. There should then be enough of the dipstick sticking out from the engine to grab on to with pliers.
http://www.pistonheads.com/gassing/topic.asp?h=0&f=160&t=839326&mid=0
http://www.rac.co.uk/forum/showthread.php?153-Renault-Clio-Oil-Dip-Stick
http://www.cliosport.net/forum/showthread.php?80099-broken-dipstick
http://www.renaultforums.co.uk/showthread.php?t=105274
ChicksFan
November 2011