Two Pets, Often Fighting, According to the Idiom

This page is the CodyCross answer for the clue below from Spa Time, Group 804, Puzzle 4 (Outdoor Yoga).

Question is: Two Pets, Often Fighting, According to the Idiom

and the answer is: CATANDDOG

Word Meaning:

CAT AND DOG — In a persistently argumentative or combative manner.

Definitions from Wiktionary.