clear up

Verb

• make free from confusion or ambiguity; make clear
  • Could you clarify these remarks?
    
  • Clear up the question of who is at fault
    

• become clear
  • The sky cleared after the storm
    

• free (the throat) by making a rasping sound
  • Clear the throat
    

• finish a task completely
  • I finally got through this homework assignment
    

• make clear and (more) comprehensible
  • clarify the mystery surrounding her death
    

Related words

• Synonyms: 
  clear , light up , brighten , get through , wrap up , finish off , mop up , polish off , finish up , clarify , elucidate
• Antonyms: 
  overcast , cloud , obfuscate