Your Answer...The only parsing i could do was a bit too convoluted for my liking if it was R+ some of loUTHeard. Maybe I'm missing something more obvious
I have never noticed R being used for reading. It's one of those I can only parse after I see teh answer- I would never have worked it out for myself, I'm sure.
Some made me look for it in the clue , found UTH then looked for any possible R. It is as you say often the case of "guessing" an answer and then parsing it.