Try Not to Overload the Donkey, He Might Kick!

This page is the CodyCross answer for the clue below from Casino, Group 279, Puzzle 3 (Richard Marcus).

Question is: Try Not to Overload the Donkey, He Might Kick!

and the answer is: BUCKAROO

Word Meaning:

BUCKAROO — (also attributive) A cowboy; specifically, a working cowboy who generally does not participate in rodeos.

Definitions from Wiktionary.