Leave your third whip in dish (7)
I believe the answer is:
goulash
'dish' is the definition.
(goulash is a kind of dish)
'leave your third whip' is the wordplay.
'leave' becomes 'go' (to go is to depart or leave).
'your third' becomes 'u' (3rd letter of 'your').
'whip' becomes 'lash' (synonyms).
'go'+'u'+'lash'='GOULASH'
'in' is the link.
(Other definitions for goulash that I've seen before include "Spicy Hungarian stew" , "Rich stew from Hungary" , "Hungarian stew of seasoned meat and veg" , "Hungarian dish" , "Hungarian meat and vegetable stew, with paprika" .)