Cooked them meal including top Norwegian cheese (9)
I believe the answer is:
emmenthal
'cheese' is the definition.
(I know that Emmenthal is a type of cow\\u0027s-milk cheese)
'cooked them meal including top norwegian' is the wordplay.
'cooked' indicates anagramming the letters (letters cooked into a new form).
'including' means one lot of letters goes inside another.
'top' suggests taking the first letters.
The first letter of 'norwegian' is 'n'.
'them'+'meal'='themmeal'
'themmeal' is an anagram of 'emmethal'.
'emmethal' going around 'n' is 'EMMENTHAL'.
(Other definitions for emmenthal that I've seen before include "Type of cheese" , "Hard Swiss cheese" , "Swiss valley giving its name to a cheese" , "Something cheesy" , "Swiss cheese with holes" .)