Mythical creature to agree with sun god (7)
I believe the answer is:
chimera
'mythical creature' is the definition.
(I know that chimera is a type of mythical creature)
'agree with sun god' is the wordplay.
'agree' becomes 'chime'.
'with' means one lot of letters go next to another.
'sun god' becomes 'ra' (Egyptian god).
'chime'+'ra'='CHIMERA'
'to' is the link.
(Other definitions for chimera that I've seen before include "eaders of radio appear after jingle" , "Creature such as a gryphon" , "Chair me to find mixed monster of Greek myth" , "Race him (anag.)" , "A wild fancy" .)