Snack with clout? (4)

I believe the answer is:

wrap

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'snack' is the definition.
(I have seen 'Flatbread snack ' mean 'wrap' so perhaps 'snack' could also mean 'wrap')

'with clout?' is the wordplay.
'with' becomes 'w' (abbreviation).
'clout?' becomes 'rap' (I can't explain this - if you can you should give a lot more credence to this answer).
'w'+'rap'='WRAP'

Can you help me to learn more?

(Other definitions for wrap that I've seen before include "Finish filming" , "Protectively cover" , "Shawl - fold in paper" , "Flatbread snack" , "Cover in paper" .)

I've seen this clue in The Telegraph.

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