Listen quietly — this happens in autumn, not end of April (9)

I believe the answer is:

eavesdrop

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'listen' is the definition.
(eavesdropping is a kind of listening)

I don't understand the rest of the clue.

(Other definitions for eavesdrop that I've seen before include "Deprave so to listen secretly" , "Listen in, earwig" , "Listen secretly to others' conversations" , "Overhear" , "listen privately" .)

I've seen this clue in The Hindu.

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