Cobbled together set of main policies (9)

I believe the answer is:

manifesto

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'policies' is the definition.
(I've seen this before)

'cobbled together set of main' is the wordplay.
'set of main' can be anagrammed to 'MANIFESTO'.
But, I'm not clear how the anagram is indicated.

Can you help me to learn more?

(Other definitions for manifesto that I've seen before include "Political statement of intent" , "plans for a party" , "party programme" , "Pre-election policy declaration" , "Declaration of political programme" .)

I've seen this clue in The Times.

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