Clonidine isn't particularly dangerous, I mean you could overdose on it, but taking 0.1 to 0.2mg is not dangerous. If you take it too many days in a row, it can have a rebound when you come off, but it's nothing like proper withdrawals, and it isn't a recreational drug. It greatly reduces physical symptoms of anxiety, and restlessness, which helps a lot in withdrawal. It also helps you sleep at 0.2mg.
Clonidine does.
But honestly the best withdrawal aid is pregabalin (followed by gabapentin). It's fairly miraculous for many people (some seem to get little from it). It's not an opioid, but it is addictive so you can't use it for too long. But it can almost totally eliminate opiate withdrawal, and also mild benzo withdrawal... and significantly help more severe benzo withdrawal, though at a certain point nothing helps severe benzo withdrawal except a long, slow taper with benzos.