"a Fly in the __"

This page is the CodyCross answer for the clue below from Professions, Group 1527, Puzzle 1 (Content Creator).

Question is: "a Fly in the __"

and the answer is: OINTMENT

Word Meaning:

OINTMENT — (medicine) A viscous preparation of oils and/or fats, usually containing medication, used as a treatment or as an emollient.

Definitions from Wiktionary.