Times 27264

[jocon]

1 ac - Fair idea , say, settled heretical one. Must be egalitarianism or egalitarianist - I've picked "ist", because of the "one" at the end of the clue, but "ism" fits the start of the clue. Any thoughts?

[Mamyalynne]

Say - Eg
Settled - Alit
Heretical one - Arianism

[Mamyalynne]

I think it works because the Arianism is the opposite of the answer.

[Calibax]

I agree with -ism. The "one" refers to the "idea".

[jocon]

Thanks for interest - I've changed my mind after thinking of what you've said. The essence of the answer is the idea. Thanks again.