I suppose somebody -could- hand-trace all the connections
and provide you a schematic, but since it's a "Free" PDK
why not just go grab a copy and ***** open the cell
library? Have you determined that the schematic does not
exist, in it?
That looks like a private "tutorial" library for a specific
college course.
What do you find under the FreePDK? Any schematics
at all? Maybe a DFFRNQ (dffrnq) minus the "X1" (which
looks to be an tutorial-specific, maybe modified, DFF?