Answer: SLYER

AnswerCrossword Clue
SLYERMore like Volpone
SLYERFoxier?
SLYERMore of a schemer
SLYERComparatively foxy
SLYERMore roguish
SLYERMore sharp
SLYERComparatively crafty senior maintains chemical solution (5)
SLYERLess straight-forward
SLYERMore cagey
SLYERMore like a fox
SLYERSneakier
SLYERFoxier
SLYERNot so straightforward
SLYERMore subtle
SLYERMore foxy
SLYERMore stealthy.
SLYERMore crafty.
SLYERMore furtive.
SLYERSlicker
SLYERMore underhanded (Var.)
SLYERMore deceptive
SLYERMore calculating
SLYERNot so naive: var.
SLYERLess ingenuous
SLYERMore Machiavellian
SLYERBetter with trickery
SLYERNot so naive
slyercunning
slyersplaying cleverness ingenious
slyerSLY, crafty (skillful in deceiving)
slyerstealthy
slyerever in concealing one's aims or ends furtive
slyerwise in practical affairs
SLYERMore shrewd
SLYERLess candid
SLYERBackdoor and then some
SLYERMore wily
SLYERComparatively crafty
SLYERMore sneaky
SLYERMore clever