Ocean-Surface Pollution From a Tanker Spill
This page is the CodyCross answer for the clue below from Wild West, Group 424, Puzzle 4 (Native Americans).
Question is: Ocean-Surface Pollution From a Tanker Spill
and the answer is: OILSLICK
Word Meaning:
OIL SLICK — A thin film of oil floating on the surface of water, especially one that has leaked or been discharged from a ship.
Definitions from Wiktionary.