In it, what's left looks right (6)
I believe the answer is:
mirror
'right' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for mirror that I've seen before include "in which driver glances back" , "It reflects images" , "newspaper" , "model" , "copy of > tabloid" .)