OK, let's have another bash at this.
I had another closer look at the formation of the letters on the original census form: the first letter looks like a F with a curl on the top cross-stroke (it's not like the T on the treshing-engine driver entry), then it could be a E, then possibly two R's. Then a looped letter, possibly an E. The next letter could be a T formed with a loop making it seem like a P; then an E, then a R - making the word/occupation Ferriter or Ferreter.
(I couldn't find any reference to Roberts' accident in the newspaper archives avavilable on various sites.)