Hound in evening sun (6)
I believe the answer is:
setter
'hound' is the definition.
(I know that Setter is a hound)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for setter that I've seen before include "stream of cattle" , "Red - - , dog" , "A dog trained to stand still when it scents game" , "Hunting dog" , "who is giving you problems right now?" .)