Crossword Genius

Rock maiden's penetrating voice (7)

Ross

I believe the answer is:

tremble

'rock' is the definition.
(thesaurus)

'maiden's penetrating voice' is the wordplay.
'maiden' becomes 'm' (cricket abbreviation).
'penetrating' means one lot of letters goes inside another.
'voice' becomes 'treble' (I've seen this before).
'm' put within 'treble' is 'TREMBLE'.

(Other definitions for tremble that I've seen before include "Quakers do this" , "Shake - quiver" , "Look nervous" , "get the shakes" , "sign of nerves" .)

I've seen this clue in The Telegraph.
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