Answer: hexer

AnswerCrossword Clue
HEXERWarlock, e.g.
hexerof or pertaining to a numbering system that uses 16 as the radix, employing the numerals 0 through 9 and representing digits greater than 9 with the letters A through F
hexerrelating to or encoded in a hexadecimal system, esp. for use by a digital computer
hexerone that hexes (to cast an evil spell upon)
HEXERMerlin at times
HEXERSpellcaster
HEXERWitch, for one
HEXEREvil witch, at times
HEXEREvil spell caster
HEXERSpell caster
HEXERWitch, at times
HEXERCharming person?
HEXERJinxer
HEXERPracticer of witchcraft: Colloq.
HEXEROne putting on the whammy
HEXERGood speller?
HEXERCharmer
HEXEREvil charmer