Restaurant reading (4)
I believe the answer is:
'restaurant reading' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for menu that I've seen before include "List of food items on offer" , "List of dishes offered by restaurant" , "List of items to choose from as in restaurant" , "Food programme of restaurant" , "List of dishes available in restaurant" .)