Knut's getting on, scanning pictures (7)
I believe the answer is:
imaging
'scanning pictures' is the definition.
I can't tell whether this defines the answer.
'knut's getting on' is the wordplay.
'knut's' becomes 'I'm' (where the crossword setter is 'Knut').
'getting on' becomes 'aging' (I've seen this before).
'im'+'aging'='IMAGING'
Can you help me to learn more?
(Other definitions for imaging that I've seen before include "Making pictorial representation of (something)" , "Making a picture" , "Forming a mental likeness of (something)" , "Making pictures" , "Forming a picture of (something)" .)