Superior meal, but no starter (5)
I believe the answer is:
upper
'superior' is the definition.
(thesaurus)
'meal but no starter' is the wordplay.
'meal' becomes 'supper' (supper is a kind of meal).
'but no starter' means to remove the first letter.
'supper' with its initial letter taken away is 'UPPER'.
(Other definitions for upper that I've seen before include "person marking swans on Thames?" , "Higher; part of shoe" , "Higher; superior" , "Higher; part of boot" , "Amphetamine pill" .)