High tone yokel around back of Dirranbandi is unselfish (10)
I believe the answer is:
altruistic
'unselfish' is the definition.
(associated in meaning)
'high tone yokel around back of dirranbandi' is the wordplay.
'high tone' becomes 'alt' (I can't justify this - if you can you should give a lot more credence to this answer).
'yokel' becomes 'rustic' (I've seen this in another clue).
'around' means one lot of letters goes inside another.
'back of' says to take the final letters.
The last letter of 'dirranbandi' is 'i'.
'rustic' enclosing 'i' is 'ruistic'.
'alt'+'ruistic'='ALTRUISTIC'
'is' is the link.
Can you help me to learn more?
(Other definitions for altruistic that I've seen before include "Concerned for others' wellbeing" , "in others' interest" , "Humanitarian" , "magnanimous" , "Selfless" .)