Answer: wilier

AnswerCrossword Clue
WILIERMore cunning
WILIERSlicker
WILIERMore artful
WILIERMore arch
WILIERMore guileful
WILIERMore tricky
WILIERMore crafty
WILIERMore like a coyote?
wilierWILY, crafty (skillful in deceiving)
wiliercrafty; cunning
wilierfull of wiles crafty a wily negotiator