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