We've found 2 phrases for professor (0.131 seconds):

lapsed academic »    A person formerly employed as a professor or researcher in a university or other institution of higher education, especially one who no longer attempts to remain current in his or her former academic field.

put the cat among the pigeons »    Professor Stephen Hawking put the cat among the pigeons last week with his cheery remarks about comet Machholz-2, which some astronomers believe could be heading our way. — The Times, 19 September 1994.

BTW, Why won't you become an editor?