Some sugar plum pulled out (4)
I believe the answer is:
lump
'some sugar' is the definition.
(lump sugar is a kind of sugar)
'plum pulled out' is the wordplay.
'out' indicates a hidden word (I've seen 'out of' mean this).
'LUMP' is hidden within 'plum pulled'.
(Other definitions for lump that I've seen before include "Small heap, swelling" , "Irregularly shaped piece" , "Put up regardless" , "Protuberance or swelling" , "Piece of sugar, coal etc" .)