Crossword Genius

Subj.-specific exam for the college-bound (6)

Ross

I believe the answer is:

aptest

(Other definitions for aptest that I've seen before include "Most suitable" , "most seemly" , "very fit" .)

I've seen this clue in the LA Times.
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.