Which command could be used to clear screen in CLISP?
You can use screen:clear-window
to do this:
(screen:with-window (screen:clear-window screen:*window*))
For more information see the documentation on screen. Also note that these functions are specific to clisp.
That didn't work for me but this did (acquired from the link)
(screen:clear-window (screen:make-window))