Prone to complaining (5)

I believe the answer is:

whiny

'prone to complaining' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Another definition for whiny that I've seen is " Peevishly moaning".)

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.