Model leaves aunt back at new church in the shade (6)
I believe the answer is:
nuance
'the shade' is the definition.
(synonyms)
'model leaves aunt back at new church' is the wordplay.
'model' becomes 't' (Ford Model T car).
'leaves' indicates named letters should be taken away.
'back' says the letters should be written backwards.
'at new' becomes 'n' (I can't explain this - if you can you should believe this answer much more).
'church' becomes 'CE' (abbreviation for Church of England).
'aunt' with 't' taken out is 'aun'.
'aun' back-to-front is 'nua'.
'nua'+'n'+'ce'='NUANCE'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for nuance that I've seen before include "Subtle variation, in meaning say" , "Cue Ann into slight shade" , "Ace nun (anag)" , "Subtle shade of difference" , "Slight difference in meaning etc" .)