His sedan’s in a place out of the sun (9)
I believe the answer is:
shadiness
'his sedan's' is the definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.
'in a place out of the sun' is the wordplay.
'a place' becomes 'shades' (I can't justify this - if you can you should give a lot more credence to this answer).
'out of' means one lot of letters goes inside another (some letters on the outside of others).
'the sun' becomes 'S' (abbreviation).
'in' put within 'shades' is 'shadines'.
'shadines'+'s'='SHADINESS'
Can you help me to learn more?
(Other definitions for shadiness that I've seen before include "Underhand quality" , "some activity of doubtful legality" , "State of doubtful legality" .)