Supplanted and put in the shade by (8)
I believe the answer is:
replaced
'supplanted' is the definition.
('replace' can be a synonym of 'supplant')
'put in the shade by' is the wordplay.
'put' becomes 'place' (place can mean to put something somewhere).
'in the' means one lot of letters goes inside another.
'shade by' becomes 'red' (red is a colour or shade. I am not sure about the 'by' bit.).
'place' put inside 'red' is 'REPLACED'.
'and' acts as a link.
Can you help me to learn more?
(Other definitions for replaced that I've seen before include "Substituted, supplanted" , "Led caper (anag.)" , "Put back in position" , "Substituted, exchanged" .)