Fishy menu with bass and rays (8)
I believe the answer is:
sunbeams
'rays' is the definition.
(sunbeam is a kind of ray)
'fishy menu with bass' is the wordplay.
'fishy' indicates anagramming the letters.
'with' says to put letters next to each other.
'menu' after 'bass' is 'bassmenu'.
'bassmenu' anagrammed gives 'SUNBEAMS'.
'and' is the link.
(Other definitions for sunbeams that I've seen before include "They provide light" , "daylight?" .)