Tubes of paste (8)

I believe the answer is:

macaroni

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This might be a double definition.

'tubes of' is the first definition.
'macaroni' can be an answer for 'tubes' (I've seen this before). I'm not certain of the 'of' bit.

'paste' is the second definition.
(macaroni is a kind of paste)

Can you help me to learn more?

(Other definitions for macaroni that I've seen before include "Pasta variety, eighteenth century dandy" , "Slender tubes of pasta" , "Type of pasta" , "Short narrow tubes of pasta" , "Italian food" .)

I've seen this clue in the Evening Standard and The Globe and Mail.

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