As is often true with my increasingly infrequent dreams, this one came in two parts. And they have nothing that I can see to do with each other.
The Dreams
Part the First
The first part consisted of me visiting a college campus somewhere and being asked to take a look at something. It was easily as tall as, and 5-7 times as wide as, your average grandfather's clock. It had some baroque woodwork and numbering in a 18th-19th century style. And while there was a normal-sized clock face in the top center of it, there were a few dozen other dials whose significance was lost on me at the time.
There was very little in the way of mechanism behind it all. Behind that top grandfather clock face, there was a teeny tiny little hourglass, no larger than an egg-timer. We were sure it was critical to the operation of the thing, but we couldn't see how.
Part the Second
At some point, we had a part off the clock, and a mouse crawled out (at that point, it was mouse-sized). I picked it up (at that point, it was housecat-sized and I could see it was missing patches of fur) and tried to get rid of it outside, but I was too busy running around and avoiding the swarms of bumblebees that were erupting from the ground. I remember getting stung in the knee once, but it didn't hurt for some reason.