Clear a cupboard, to start with, and resign (6)
I believe the answer is:
acquit
'clear' is the definition.
(I know that clear can be written as acquit)
'a cupboard to start with and resign' is the wordplay.
'to start with' says to take the initial letters.
'and' is a charade indicator (letters next to each other).
'resign' becomes 'quit' (to quit something is to resign from it).
The initial letter of 'cupboard' is 'c'.
'a'+'c'+'quit'='ACQUIT'
(Other definitions for acquit that I've seen before include "Discharge as innocent, dismiss charge" , "Pronounce not guilty of criminal charges" , "Exonerate" , "Group of families" , "Free from captivity, being innocent" .)