(idiomatic) Straightforward, obvious, simple, or basic. / (forestry) Having had all trees cut.

To remove all trees or vegetation from an area.

a signal that danger, such as an air raid, is over; usually a siren at a single pitch / permission to proceed after obstacles have been removed

To assuage a hostile situation.

A sign or signal indicating that a hindrance or danger is clear.

the state of being clear-headed

Alternative spelling of clearheaded

Having sharp vision. / Acutely perceptive or discerning; perspicacious.

(idiomatic) Completely clear and understood. / (idiomatic) Visually clear, a sharp image, high acuity.

(figuratively, intransitive, often followed by of) To avoid; to dodge; to sidestep.