Preserved, though the worse for wear (7)
I believe the answer is:
pickled
I believe this clue is a double definition.
'preserved' is the first definition.
(pickling is a kind of preserving)
'the worse for wear' is the second definition.
(pickled can informally mean drunk)
'though' acts as a link.
(Other definitions for pickled that I've seen before include "Preserved - drunk" , "Drunk (as a gherkin?)" , "Preserved in vinegar or brine" , "Blotto" , "Brahms and Liszt" .)