Food plan (4)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
diet
'food plan' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for diet that I've seen before include "Health food - Council" , "See 19" , "Slimmer's regimen" , "Weight-loss plan" , "Range of food eaten" .)