I've not broken a collarbone, but broke an elbow quite a few years ago playing rugby, then broke foot, tibia, and fibula in one go, as per the thread Had a crash - lessons learned . I was out of plaster in a few weeks with the elbow, and back to normal very quickly, but I was much younger then, meaning the break healed quickly. With the ankle and foot injury I was plastered for three months, in an orthopaedic boot for a couple of months longer, and have been left with a permanent limp. In spite of this I'm cycling again and am back to riding 100k regularly, although I've had to adapt to not being able to stand on the pedals and a new position on the bike minimising load on the ankle.

The best advice I can give is to talk to your consultant and physio, tell them you cycle, and what sort of distances and speed, and ask what their advice is on getting back into riding regularly. Do the exercises you're given by the physio, to the letter - I was congratulated by my physio for doing as I was told, and told that this had made a marked difference in my recuperation. And do be patient - if you're told to stay off the bike for another week longer it's for a good reason.

When you do get back on the bike start with short easy rides with someone who's happy to ride at your pace for company - this will make a big difference in restoring your confidence. Remember if you overdo things at the start you'll get tired which will affect your recovery and lower your confidence. Give yourself goals by all means but nothing that's unrealistic or will impede your recuperation.

Good luck, and best wishes for a full and fast recovery!