Now I have finished my first week in the clinic. Nephrology paired with a day and a night in the ER. I have managed two brief meetings concerning research, and two evenings in the lab. Having thus prepared for a weekend in the lab, I can say that clinical work and laboratory research is compatible with each other. They are, however, not obviously compatible with life as we know it.
In many ways that goes for all serious hobbies. That is you have time for one serious hobby at the time. While doing full time research I had a fair amount of time to do photography, that involves reading books, looking at photographs, reading blogs, surfing for equipment, playing with photoshop, and occasionally photography. While studying it was ju-jutsu, which invloved rather more practice, but also a fair amount of reading and surfing forums (blogs weren't the thing at the time). Now my hobby is research, it involves quite a bit of reading, blog surfing, writing, some meetings, and occasionally lab work.
Luckily, most of my research at the moment is being run by centralized facilities at the university, which means I only have to prepare my samples and wait. I think analysis and writing is more easily compatible with clinical work, but that remains to be seen.