Crossword Genius

Degenerate chooses to steal ring (4)

Ross

I believe the answer is:

echo

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

'ring' is the definition.
(synonyms)

'degenerate chooses to steal' is the wordplay.
'ECHO' is hidden within the letters.
However, I am uncertain how the hidden word is indicated.

Can you help me to learn more?

(Other definitions for echo that I've seen before include "Marked by heat" , "Repetition of sound" , "letter we hear" , "Response" , "Reflected sound" .)

I've seen this clue in The Hindu.
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