Dairy-Sounding Nickname for Person in Charge

This page is the CodyCross answer for the clue below from Working From Home, Group 1228, Puzzle 4 (Healthy Snacks).

Question is: Dairy-Sounding Nickname for Person in Charge

and the answer is: BIGCHEESE

Word Meaning:

BIG CHEESE — (idiomatic, dated) A very important figure, especially a high-ranking person in an organization.

Definitions from Wiktionary.