I refuse to keep attending western country club (4)
I believe the answer is:
nato
'western country club' is the definition.
The answer and definition can be both groups as well as being singular nouns.
Maybe you can see an association between them that I don't see?
'i refuse to keep attending' is the wordplay.
'i refuse' becomes 'no'.
'to keep' means one lot of letters goes inside another.
'attending' becomes 'at' (e.g. at school means attending school).
'no' going around 'at' is 'NATO'.
Can you help me to learn more?
(Other definitions for nato that I've seen before include "Military alliance, formed 1949" , "N. Atlantic alliance" , "Security agreement" , "Military bloc" , "Western mil. alliance" .)