Drink that is actually food (7)
I believe the answer is:
toastie
'actually food' is the definition.
I don't know anything about this answer so I can't tell whether this works.
'drink that is' is the wordplay.
'drink' becomes 'toast' (toast is a kind of drink).
'that is' becomes 'ie' (short for Latin 'id est', 'that is').
'toast'+'ie'='TOASTIE'
Can you help me to learn more?
(Other definitions for toastie that I've seen before include "this food's hot" , "Browned sandwich" , "Warm snack" , "Hot snack (informal)" , "Grilled food" .)