Answer: mucketymuck

AnswerCrossword Clue
MUCKETYMUCK

Big cheese

MUCKETYMUCK

"High" VIP

MUCKETYMUCK

"High" influential type

MUCKETYMUCK
Big kahuna
MUCKETYMUCK
Important person
MUCKETYMUCKPooh-bah
MUCKETYMUCKImportant one