Crossword Genius

Loud scold more vulnerable (7)

Ross

I believe the answer is:

frailer

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'loud scold more vulnerable' is the definition.
I can't judge whether this definition defines the answer.

'loud scold more vulnerable' is the wordplay.
'loud' becomes 'f' (short for forte - 'loud' in music).
'scold' becomes 'rail' (I've seen this in another clue).
'more vulnerable' becomes 'er' (I can't explain this - if you can you should believe this answer much more).
'f'+'rail'+'er'='FRAILER'

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