Kind fellow in the shade (6)
I believe the answer is:
humane
'kind' is the definition.
('humane' can be similar in meaning to 'kind')
'fellow in the shade' is the wordplay.
'fellow' becomes 'man' (I've seen this before).
'in the' means one lot of letters goes inside another.
'shade' becomes 'hue' (I've seen this before**).
'man' going within 'hue' is 'HUMANE'.
(Other definitions for humane that I've seen before include "Kind and merciful" , "Merciful and considerate" , "Showing compassion for animals" , "Characterised by kindness" , "Showing compassion or consideration for others" .)