Doctor round pub beginning to eat meal (6)
I believe the answer is:
dinner
'meal' is the definition.
(I know that Dinner is a type of meal)
'doctor round pub beginning to eat' is the wordplay.
'doctor' becomes 'dr' (abbreviation).
'round' indicates putting letters inside.
'pub' becomes 'inn' (an inn is a type of pub).
'beginning to' suggests taking the first letters.
The initial letter of 'eat' is 'e'.
'inn'+'e'='inne'
'dr' going around 'inne' is 'DINNER'.
(Other definitions for dinner that I've seen before include "Main meal of day" , "one making a row?" , "Eat it in the strange red inn" , "grub" , "Evening meal" .)