Crossword Genius

Plain font whose name becomes plane-related if you add an E (5)

Ross

I believe the answer is:

arial

(Another definition for arial that I've seen is " Common typeface".)

I've seen this clue in the USA Today.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.