Frightened with lots of blows? (5)

I believe the answer is:

windy

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'frightened' is the definition.
Both the answer and definition are adjectives. Maybe they are linked in a way I don't understand?

'with lots of blows?' is the wordplay.
'with' becomes 'w' (abbreviation).
'lots of blows?' becomes 'indy' (I can't explain this - if you can you should believe this answer much more).
'w'+'indy'='WINDY'

Can you help me to learn more?

(Other definitions for windy that I've seen before include "Chicago, the _____ City" , "Conceited - nervous - registering on the Beaufort scale" , "far from calm" , "Blowy" , "Gusty" .)

I've seen this clue in The Irish Independent.

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