Get the impression you are not insensitive (4)
I believe the answer is:
feel
'get' is the definition.
(I know this)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for feel that I've seen before include "Instinct" , "16A [JUDGE]" , "Experience, perceive" , "Fondle" , "impression" .)