Can Take her out fast with a quick left click followed by a pounce... Very satisfying... Code name 1-2 combo, Follow up with a question of "do you want fries with that".

If Meave isn't using Artful Dodger, and you have Surprise Attack, break hidden with Poison Bolts and do your hit her once from behind. Follow that up by using smoke screen to hide yourself and let the damage encourage Maeve to retreat.

Smoke screen and Hidden counters Maeve ultimate and also works as a disengage tool. If Maeve flanks your backline and you're near, it's an easy kill.