Turkey is part of this set meal I'd ordered around beginning of December (6,4)
I believe the answer is:
middle east
'turkey is part of this' is the definition.
(I know this)
'set meal i'd ordered around beginning of december' is the wordplay.
'ordered' indicates anagramming the letters.
'around' means one lot of letters goes inside another.
'beginning of' suggests taking the first letters.
The first letter of 'december' is 'd'.
'set'+'meal'+'id'='setmealid'
'setmealid' with letters rearranged gives 'midleeast'.
'midleeast' placed around 'd' is 'MIDDLE EAST'.
(Another definition for middle east that I've seen is " Troubled zone".)