Simple Massing Priest has an article with this title, reporting what Michael Peers a former Primate of the Anglican Church of Canada said, back in 2000, well before the proposed Anglican Covenant was invented:
[W]orldwide Anglicanism is a communion, not a church. The Anglican Church of Canada is a church. The Church in the Province of the West Indies is a church. The Episcopal Church of Sudan is a church. The Anglican Communion is a ‘koinonia’ of churches.
We have become that for many reasons, among which are the struggles of the sixteenth century and an intuition about the value of inculturation, rooted in the Incarnation, which has led us to locate final authority within local churches.
We are not a papal church and we are not a confessional church. We are autonomous churches held together in a fellowship of common faith dating from the creeds and councils, recognizing the presidency of a primus inter pares (the Archbishop of Canterbury), often struggling with inter-church and intra-church tension, but accepting that as the price of the liberty and autonomy that we cherish.
As I said to the members of the Council of General Synod last month, the price of this includes a certain measure of messiness.’ [Power in the Church: Prelates, Confessions, Anglicans The Arnold Lecture, December 6, 2000, Halifax, Nova Scotia]