Jotting down (6)
I believe the answer is:
noting
'jotting down' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for noting that I've seen before include "Observing or taking down" , "Observing and jotting down" , "Seeing" , "Making brief record of something" , "Making brief record as memory aid" .)