Oil supply charged into outer meter’s alternators? (5,4)
I believe the answer is:
olive tree
'into outer meter's alternators?' is the definition.
I can't judge whether this definition defines the answer.
'oil supply charged' is the wordplay.
'oil' becomes 'olive' (as in olive oil).
'supply' becomes 'etre' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'charged' means one lot of letters goes inside another (charged can mean filled with).
'olive' going around 'etre' is 'OLIVE TREE'.
Can you help me to learn more?
(Other definitions for olive tree that I've seen before include "bearer of fruit" , "oil supplier" .)