Superior evening meal starting late (5)
I believe the answer is:
upper
'superior' is the definition.
(eg an upper house in a parliament)
'evening meal starting late' is the wordplay.
'evening meal' becomes 'supper' (I've seen this in another clue).
'starting late' means to remove the first letter (the word begins later than normal).
'supper' with its initial letter taken off is 'UPPER'.
(Other definitions for upper that I've seen before include "Section of Oxford" , "The higher of two, berths perhaps" , "person marking swans on Thames?" , "Pep pill" , "Higher; superior" .)