Cooks taking requests from diners eg keep taking the tablets (7,6)
I believe the answer is:
doctors orders
'diners eg keep taking the tablets' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.
'cooks taking requests' is the wordplay.
'cooks' becomes 'doctors' (I've seen this before).
'taking requests' becomes 'orders' (ordering is a kind of requesting. I am not sure about the 'taking' bit.).
'doctors'+'orders'='DOCTORS ORDERS'
'from' is the link.
Can you help me to learn more?
(Other definitions for doctors orders that I've seen before include "Medical advice" , "9 recommendation" .)