Casually dine, hours to be fed (9)
I believe the answer is:
nourished
'fed' is the definition.
(nourishing is a kind of feeding)
'casually dine hours' is the wordplay.
'casually' indicates anagramming the letters (I've seen this in other clues).
'dine'+'hours'='dinehours'
'dinehours' with letters rearranged gives 'NOURISHED'.
'to be' is the link.
(Other definitions for nourished that I've seen before include "Sustained" , "properly fed" .)