ReadySteadyBook reports that Geoffrey Hill's Collected Critical Writings is due out from OUP in March. I wouldn't expect an easy read, of course, but perhaps his criticism might elucidate his poetic to some extent. Not having read any of it, I wouldn't know, but it should be worth a look. Several of the essay titles intrigue me, anyway. The book will cost £25, which seems quite reasonable for a 688-page hardback collection of 34 essays.