Answer: polarizes

AnswerCrossword Clue
POLARIZESSends to separate camps
polarizesRestrict the vibrations of (a transverse wave, esp. light) wholly or partially to one direction
polarizesPOLARIZE, to give polarity to, also POLARISE
polarizesDivide or cause to divide into two sharply contrasting groups or sets of opinions or beliefs
polarizesCause (something) to acquire polarity