Precise over author Levi (5)
I believe the answer is:
primo
'author levi' is the definition.
(I've seen this in another clue)
'precise over' is the wordplay.
'precise' becomes 'prim' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'over' becomes 'o' (cricket abbreviation).
'prim'+'o'='PRIMO'
Can you help me to learn more?
(Other definitions for primo that I've seen before include "top player" , "Duet's lead part (It. first)" , "duettist" , "Leading role" , "Principal part of duet" .)