I was getting a bit anxious after CRUMB, when I was having a hard time thinking of where to go after that. I could feel them approaching, starting to feed on my anxiousness. So I stepped away for a few minutes, to collect myself. I came back, and figured the U was in position 2, leaving the R for position 1, 3, or 4. HURRY was a possible solution, and if it wasn't correct it would pinpoint the location of the R. After HURRY, the solution was RUxxY, and RUDDY was the only word I could find to fit.