Hazardous Coating on Road Surfaces in Winter

This page is the CodyCross answer for the clue below from Paris, Group 257, Puzzle 4 (Feast of Ascension Holiday).

Question is: Hazardous Coating on Road Surfaces in Winter

and the answer is: BLACKICE

Word Meaning:

BLACK ICE — A smooth, barely visible, and dangerously slippery film of ice, usually over a dark surface, such as rock or pavement.

Definitions from Wiktionary.