Kept secret from American, surprisingly
I believe the answer is:
in camera
'kept secret' is the definition.
'in camera' can be an answer for 'secret' (legal term meaning in private, lit. 'in a chamber'). I am not sure about the 'kept' bit.
'american surprisingly' is the subsidiary indication.
'surprisingly' indicates an anagram.
'american' anagrammed gives 'incamera'.
'from' is the link.
Can you help me to learn more?
(Other definitions for in camera that I've seen before include "not for all to see" , "Privately - American (anag)" , "secretly" , "'In private (2,6)'" , "secret" .)