Clear this solution

Agee
Ages
Agree
Areg
Ares
Eager
Eagre
Ears
Ease
Eras
Erase
Ergs
Erse
Gear
Gears
Grease
Rage
Ragee
Rags
Rase
Sage
Saree
Sear
Seer
Sera
Sere
Serge