CrossRoads:
Slave does not generate the SPI clock, the master does. Were it to become an SPI master, it would have to generate a clock.
Can you buffer the clock from the master and pass it along externally to the other device?
Thanks, I know that the master generates the clock, but in this case the "master" is a couple of shift registers and a clock generator. If I can get the AVR slave to replace the clock generator I can save a chip. I may just have to try it once everything else is working.