Industriously making a vehicle somewhat oily (6)
I believe the answer is:
busily
'industriously' is the definition.
Both the answer and definition are adverbs. Perhaps they are linked in a way I don't understand?
'a vehicle somewhat oily' is the wordplay.
I cannot really see how this works, but
'vehicle' could be 'bus' (public transport vehicle) and 'bus' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
'making' is the link.
Can you help me to learn more?
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