Crossword Genius

Diva to play the banshee? (4)

Ross

I believe the answer is:

keen

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

This could be a double definition.

'diva' is the first definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.

'play the banshee?' is the second definition.
The answer and definition can be both related to communication as well as being singular nouns.
Maybe they are linked in a way I don't understand?

'to' acts as a link.

Can you help me to learn more?

(Other definitions for keen that I've seen before include "Sharp - eager" , "Sharp -- express grief" , "Sharp - lament" , "Quick" , "Enthusiastic or sharp" .)

I've seen this clue in the Sydney Morning Herald.
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