Naomirod - the definition is an unusual 4 letter word for a bobsleigh run. The wordplay is learner + a German word. I hope this helps. I'm still not finished either - this puzzle has some extremely tough clues.
There are several words in German meaning 'from'. Think of the one which is also, as it happens, actually contained in their word for 'run'. Stick that on the end of the 'learner' for the answer.