Na-adjective (keiyodoshi)
clear; transparent
四天王も倒した、クソ長い地下迷宮もクリアした。I'd defeated the four sub-bosses and got through the damn long underground labyrinth. Noun, Suru verb, Transitive verb
clearing (a high-jump bar, hurdle, etc.)
Sports
overcoming; getting through; getting past; completing; solving; settling; meeting (e.g. a standard)
clearing (the ball; in soccer)
Sports
clearing (e.g. a checked box)
Computing
completing (a game, level, etc.); beating; finishing
Video games
Also written クリアー、クリヤー、クリヤ