Humble meal in pieces (6)
I believe the answer is:
menial
'humble' is the definition.
(synonyms)
'meal in pieces' is the wordplay.
'pieces' indicates anagramming the letters (the same pieces in a new order).
'meal'+'in'='mealin'
'mealin' anagrammed gives 'MENIAL'.
(Other definitions for menial that I've seen before include "Demeaning" , "Subservient, lowly" , "(Of work) unskilled" , "Domestic servant" , "Humble - servant" .)