TRICKSY
crafty, cunning, dodgy, foxy, guileful, knavish, slick, sly, tricksy, tricky, wily
(adjective) marked by skill in deception; “cunning men often pass for wise”; “deep political machinations”; “a foxy scheme”; “a slick evasive answer”; “sly as a fox”; “tricky Dick”; “a wily old attorney”
Source: WordNet® 3.1
Etymology
Adjective
tricksy (comparative tricksier, superlative tricksiest)
Inclined to trickery; sneaky, devious.
Source: Wiktionary
Trick"sy, a. Etym: [From Trick.]
Definition: Exhibiting artfulness; trickish. "My tricksy spirit!" Shak.
he tricksy policy which in the seventeenth century passed for state
wisdom. Coleridge.
Source: Webster’s Unabridged Dictionary 1913 Edition