Archbishop cooked meals round the Nag's Head (6)
I believe the answer is:
anselm
'archbishop' is the definition.
(I've seen this before)
'cooked meals round the nag's head' is the wordplay.
'cooked' indicates an anagram (letters cooked into a new form).
'round' means one lot of letters goes inside another.
'head' indicates taking the first letters.
The initial letter of 'nags' is 'n'.
'meals' anagrammed gives 'aselm'.
'aselm' going around 'n' is 'ANSELM'.
(Other definitions for anselm that I've seen before include "Canonised archbishop of Canterbury" , "Christian saint" , "Sainted Archbishop of Canterbury" , "Italian monk, saint and Archbishop of Canterbury, 1093-1109" , "Saintly archbishop" .)