Seedy (6)
I believe the answer is:
sordid
'seedy' is the definition.
(I know that seedy can be written as sordid)
This is all the clue.
(Other definitions for sordid that I've seen before include "Squalid and depraved" , "Morally revolting" , "Squalid, not honourable" , "Dirty, mean" , "Seedy, squalid" .)