Go out with model to get food (4)
I believe the answer is:
diet
'food' is the definition.
(diet is a kind of food)
'go out with model' is the wordplay.
'go out' becomes 'die' (I've seen this in another clue).
'with' is a charade indicator (letters next to each other).
'model' becomes 't' (Ford Model T car).
'die'+'t'='DIET'
'to get' is the link.
(Other definitions for diet that I've seen before include "food one eats on a regular basis" , "Food - parliament" , "A restricted eating regime" , "Regimen for eating" , "prescribed nourishment?" .)