Crossword Genius

Avenge the destruction of a city (6)

Ross

I believe the answer is:

geneva

I'm a little stuck... Click here to teach me more about this clue!

'a city' is the definition.
(Geneva is an example)

'avenge the destruction' is the wordplay.
'avenge' can be anagrammed to 'GENEVA'.
But, I am not clear how this is indicated.

'of' is the link.

Can you help me to learn more?

(Other definitions for geneva that I've seen before include "Calvin's city" , "Swiss city/lake" , "Avenge in Swiss city" , "city of biblical significance" , "Some bands" .)

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