Not a year for upsetting that local (3)
I believe the answer is:
yon
'not' is the definition.
Both the definition and answer are adverbs. Maybe there's an association between them I don't understand?
'a year for upsetting that local' is the wordplay.
'a year' becomes 'y'.
'for' means one lot of letters go next to another.
'upsetting' shows that the letters should be reversed in order.
'that local' becomes 'no' (I can't justify this - if you can you should believe this answer much more).
'no' backwards is 'on'.
'y'+'on'='YON'
Can you help me to learn more?
(Another definition for yon that I've seen is " Those Scots".)