Discharge from Mediterranean island? (7)
I believe the answer is:
excrete
'discharge' is the definition.
(I know that excrete is a type of discharge)
'from mediterranean island?' is the wordplay.
'from' becomes 'ex' ('from' in Latin).
'mediterranean island?' becomes 'crete' (I've seen this in another clue).
'ex'+'crete'='EXCRETE'
(Other definitions for excrete that I've seen before include "Expel (waste) from the body" , "Eliminate (from the body)" , "Defecate" .)