1) Acted like a wolf 2) Acted the lecher 3) Cast a sly look 4) Cast an evil glance 5) Emulated groucho 6) Emulated groucho marx 7) Exhibited salaciousness 8) Eyed impolitely 9) Eyed lasciviously 10) Eyed rudely 11) Eyed slyly 12) Eyed with bad intent 13) Eyed wolfishly 14) Gave a sideways glance 15) Gave a sinister glance Found on https://www.crosswordclues.com/clue/leered