English Tory's desperate for aphrodisiac (6)
I believe the answer is:
oyster
'aphrodisiac' is the definition.
(oysters are supposedly aphrodisiacs)
'english tory's desperate' is the wordplay.
'english' becomes 'E' (abbreviation).
'desperate' is an anagram indicator (a desperate or pathetic spelling).
'e'+'torys'='etorys'
'etorys' is an anagram of 'OYSTER'.
'for' acts as a link.
(Other definitions for oyster that I've seen before include "Means to cross London" , "Seafood item sometimes eaten alive" , "Secretive person; bivalve" , "Greyish pink" , "Succulent bivalve swallowed quickly" .)