The phrase describes a specific type of clue found in crossword puzzles. It signifies that the answer sought is a word related to the cosmetic product applied to eyelashes. For example, a clue might be “Lengthening cosmetic” with the answer being “MASCARA.” The answer fits both the description and the grid’s structure.
Such clues rely on general knowledge and word association, challenging solvers to connect everyday items with their descriptive synonyms or related terms. This type of clue contributes to the overall complexity and enjoyment of crossword puzzles, enriching vocabulary and cognitive skills. The specificity of the subject matter, in this case, cosmetics, can further refine the challenge, requiring solvers to draw upon a particular domain of knowledge.