Hi dr_b_too, (can't have too many doctors on one thread, I suppose!) I had the same problem with 2d, the quotation was not in my elderly ODQ 4th Ed. Went into the bookshop to have a peep, and ended up buying the 7th Edition - and very good it is too.
When you put the word into an anagram solver such as Utsire, a barbiturate comes up as one of the answers. If you Google this the poet's name should come up.
I think it has been suggested in the past that direct answers should be asked for on another thread.