Turns over about two wheelers (8)
I believe the answer is:
recycles
'turns' is the definition.
The definition and answer can be both to do with motion as well as being verbs in their -s form.
Perhaps there's an association between them I don't understand?
'about two wheelers' is the wordplay.
'about' becomes 're' (regarding).
'two wheelers' becomes 'cycles' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
're'+'cycles'='RECYCLES'
'over' acts as a link.
Can you help me to learn more?
(Other definitions for recycles that I've seen before include "Uses again for another purpose" , "Acts eco-friendly" , "Converts waste material for use again" .)