With precision (6)
I believe the answer is:
neatly
'with precision' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for neatly that I've seen before include "Orderly and cleanly" , "In a tidy way" , "'Tidily, trimly (6)'" , "In tidy fashion" , "With deftness" .)