"Finally I can relax!" (3)

I believe the answer is:

aah

(Other definitions for aah that I've seen before include "Expression of surprise" , "regular partner of 3 [OOH]" , "Expression of appreciation or amazement" .)

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.