Pickled stuff for miser (8)
I believe the answer is:
'for miser' is the definition.
'pickled stuff' is the wordplay.
'pickled' becomes 'tight' (I can't explain this - if you can you should believe this answer much more).
'stuff' becomes 'wad' (wadding is a kind of stuffing).
Can you help me to learn more?
(Other definitions for tightwad that I've seen before include "Cheapskate" , "Miserly person" , "Skinflint" , "Miser (sl.)" , "Mean person (US)" .)