Effectively

1 clue
In a manner that works well
Similar answers:
Actively
Aftereffect
Aftereffects
Alternatively
Attentively
Boomerangeffect
Butterflyeffect
Calendareffects
Cascadeeffect
Cawsandeffect
Champagneeffect
Cnneffect
Consecutively
Consecutivelyin
Constructively
Cupertinoeffect
Deceptively
Delayedeffect
Demonstratively
Dominoeffect