Musical phrase air-wing yelled at plebs? (4-4)

I believe the answer is:

riff-raff

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'yelled at plebs?' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'musical phrase air-wing' is the wordplay.
'musical phrase' becomes 'riff' (repeated musical phrase).
'air wing' becomes 'raff' (I can't explain this - if you can you should believe this answer much more).
'riff'+'raff'='RIFF-RAFF'

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(Other definitions for riff-raff that I've seen before include "Hoi polloi" , "Dregs of society" , "Rabble" , "rubbish" , "Undesirables" .)

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

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