Absolutely not about the end of summer in the country (6)
I believe the answer is:
norway
'country' is the definition.
(Norway is an example)
'absolutely not about the end of summer' is the wordplay.
'absolutely not' becomes 'noway' (I've seen this before).
'about' means one lot of letters goes inside another.
'the end of' indicates one should take the final letters.
The final letter of 'summer' is 'r'.
'noway' enclosing 'r' is 'NORWAY'.
'in the' is the link.
(Other definitions for norway that I've seen before include "Now, Ray, go to the country" , "North European country" , "Trondheim country" , "Grieg's land" , "European monarchy" .)