Yes, indeed. Like you I had gone my entire life (63 years to that point) without breaking a bone. Last year I took a tumble off my bike and did a really proper job on my collar bone. Had to have a titanium plate fitted to it. I was back cycling (mountain biking, actually) within a couple of months, thought quite cautiously, and now, less than a year on, I don't even think about it any more. Initially a friend loaned me a turbo-trainer but, man, that was just so tedious. It probably forced me out on the bike a little sooner than was wise but I just couldn't wait.
From what I recall of what the doctors told me I believe that the forces from cycling don't exert a lot of pressure on the clavicle. You'll obviously need to be very cautious about coming off again as any side impact could set it back substantially.
Before
After
You see can underneath the right hand part of the clavicle that I broke a rib as well and that actually gave me a great deal more trouble than the clavicle. If you sleep on your side you'll need to keep off the broken side for some weeks as well. However, due to my broken rib I ended up having to sleep propped up lying on my back for several weeks. Best wishes for a speedy recovery.