You could try echo -ne '\ec' or echo -ne '\033c'. Or this from bash/readline:
clear-display (M-C-l) Clear the screen and, if possible, the terminal's scrollback buffer, then redraw the current line, leaving the current line at the top of the screen.
reset() { clear && printf '\33c'; }
You could try echo -ne '\ec' or echo -ne '\033c'. Or this from bash/readline:
But yea, this might depend on terminal as well