Some salami served for tightwad (5)
I believe the answer is:
miser
'tightwad' is the definition.
(synonyms)
'some salami served for' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'MISER' is hidden in the letters of 'salami served for'.
(Other definitions for miser that I've seen before include "One sparing with money" , "One such as Scrooge" , "He's close" , "Skinflint, like Scrooge" , "Avaricious hoarder" .)