Humble meal in pieces (6)
I believe the answer is:
menial
'humble' is the definition.
('menial' can be a synonym of 'humble')
'meal in pieces' is the wordplay.
'pieces' indicates an anagram.
'meal'+'in'='mealin'
'mealin' is an anagram of 'MENIAL'.
(Other definitions for menial that I've seen before include "Demeaning" , "Subservient, lowly" , "(Of work) unskilled" , "Domestic servant" , "Humble - servant" .)