Squabbles can get endlessly worse (4)

I believe the answer is:

rows

I'm a little stuck... Click here to teach me more about this clue!

'squabbles' is the definition.
(I've seen this in another clue)

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for rows that I've seen before include "Disagreements" , "Tiers" , "Angry disputes" , "emotional exchanges" , "Puts one's oar in" .)

I've seen this clue in The Globe and Mail.

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.