Cast embracing chap showing compassion (6)
I believe the answer is:
humane
'showing compassion' is the definition.
(I've seen this before)
'cast embracing chap' is the wordplay.
'cast' becomes 'hue' (I've seen this before).
'embracing' means one lot of letters goes inside another.
'chap' becomes 'man' (I've seen this before).
'hue' enclosing 'man' is 'HUMANE'.
(Other definitions for humane that I've seen before include "Kindly or merciful" , "Kind and liberal" , "sort of killer" , "Showing compassion or consideration for others" , "Kind - compassionate" .)