the coast is clear

clear blue water

An obvious, unambiguous divide between the policies of two parties.

clear cut

Straightforward, obvious, simple, or basic.

clear off

To pay off debts.

clear one's lines

To clear the ball away from a dangerous position.

clear the air

To assuage a hostile or uncomfortable situation.

clear the table

To remove plates, etc. from a table after a meal.

crystal clear

Completely clear (in various senses).

make oneself clear

To have one's meaning fully understood.