Blob left out for shilling (3)
I believe the answer is:
bob
'shilling' is the definition.
(thesaurus)
'blob left out' is the wordplay.
'left' becomes 'l' (common abbreviation).
'out' indicates named letters should be taken away.
'blob' with 'l' taken out is 'BOB'.
'for' acts as a link.
(Other definitions for bob that I've seen before include "Brief curtsy - hairstyle" , "Short haircut for an old shilling?" , "Bounce" , "Move up and down as in water" , "-- Dylan, singer" .)