Geoffrey Hill said of his late(-ish) collection Speech! Speech! that it was an attempt to bring a sort of energy into English verse that had been missing from it for a long time, an energetic effrontery; and that when presented with that energy, the absence of which they had all been loudly decrying, the majority of critics had simply not known what was to be done with it. He also said (words of advice to young people), “give us a black swan”. I don’t think he’d ever read heronbone – I’m not certain I ever really have, properly.