Commuter may be doing this as education (8)
I believe the answer is:
training
'education' is the definition.
(I know that education can be written as training)
'commuter may be doing this as' is the wordplay.
I cannot quite see how this works, but
'as' could be 'in' (I've seen this in other clues) and 'in' is found in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for training that I've seen before include "Instructing, teaching" , "Doing exercises" , "Preparing for athletic performance" , "Doing exercise" , "Regime" .)