Beast featured in Sun is warlord (6)
I believe the answer is:
shogun
'warlord' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe you can see a link between them that I can't see?
'beast featured in sun' is the wordplay.
'beast' becomes 'hog' (hog is a kind of beast).
'featured in' means one lot of letters goes inside another.
'hog' inserted into 'sun' is 'SHOGUN'.
'is' acts as a link.
Can you help me to learn more?
(Other definitions for shogun that I've seen before include "Japanese head" , "Hereditary military governor in Japan" , "Feudal Japanese leader" , "So hung about with old Japanese army commander" , "Old Japanese hereditary army commander" .)