Left fool some bread (4)
I believe the answer is:
loaf
'some bread' is the definition.
(loaf of bread)
'left fool' is the wordplay.
'left' becomes 'l' (common abbreviation).
'fool' becomes 'oaf' (I've seen this in another clue).
'l'+'oaf'='LOAF'
(Other definitions for loaf that I've seen before include "Portion of bread" , "more than just crumbs!" , "` `Half a .... is better than no bread' '" , "Lounge about" , "To take things easy" .)