Answer: refines

AnswerCrossword Clue
REFINESPurifies
REFINESAcquires elegance
REFINESProcesses, as oil
REFINESRemoves impurities from
REFINESClarifies.
REFINESFine-tunes
REFINESPolishes
REFINESPurifies, as petroleum
refinesto teach good manners, taste, etc.
refinesto free from impurities or error
refinesREFINE, to free from impurities