Sleazy, squalid (6)
I believe the answer is:
sordid
I believe this clue is a double definition.
'sleazy' is the first definition.
(I know that sleazy can be written as sordid)
'squalid' is the second definition.
(I know that squalid can be written as sordid)
(Other definitions for sordid that I've seen before include "meanness" , "Squalid and depraved" , "Mean and grubby" , "Squalid - base" , "Squalid, not honourable" .)