Hyundai Veloster Gearbox & Transmission Problems

It is probably backlash in the driveline, as you say like that you would experience in a rear-drive diff. If it's only happening when you backing out of the driveway I wouldn't be concerned about it.

Problems with clutches are cropping up on a regular basis these days, certainly more than they did a few years ago. It's hard to say how long a clutch should last today, in the past I would have said that 36,000km is too low, but it's now not unusual to hear of clutches needing replacement at relatively low kays. As yours is still not worn out it might not actually need replacing until 50,000km or more and that would be within the acceptable range. The only way to determine if the wear is abnormal is to inspect it.