phr verb
Clear up is used with these nouns as the subject: ↑ acne , ↑ sky , ↑ storm , ↑ weather
Clear up is used with these nouns as the object: ↑ clutter , ↑ confusion , ↑ debris , ↑ doubt , ↑ litter , ↑ matter , ↑ mess , ↑ misunderstanding , ↑ mystery , ↑ problem , ↑ thing