Salty cheese found in unsafe tavernas (4)
I believe the answer is:
feta
'salty cheese' is the definition.
(I've seen this in another clue)
'in unsafe tavernas' is the wordplay.
'in' indicates the answer is hidden within the clue.
'FETA' is hidden in the letters of 'unsafe tavernas'.
'found' is the link.
(Other definitions for feta that I've seen before include "Type of cheese" , "Eastern Mediterranean cheese" , "Greek 8 across" , "Greek sheep or goats' cheese" , "Goat's or sheep's milk cheese" .)