Putting board on reversing vehicle is easily managed (9)
I believe the answer is:
tractable
'easily managed' is the definition.
(I've seen this before)
'putting board on reversing vehicle' is the wordplay.
'putting board' becomes 'table' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'on' is a charade indicator (letters next to each other).
'reversing' says the letters should be written in reverse.
'vehicle' becomes 'cart' (cart is a kind of vehicle).
'cart' back-to-front is 'trac'.
'table' after 'trac' is 'TRACTABLE'.
'is' acts as a link.
Can you help me to learn more?
(Other definitions for tractable that I've seen before include "Easily controlled" , "easily handled" , "Easy to control or influence" , "Easy to manage or deal with" , "easily managed" .)