Projection for New Guinea (5)

I believe the answer is:

prong

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'projection' is the definition.
(I know that prong is a type of projection)

'for new guinea' is the wordplay.
'for' becomes 'pro' (as in being 'pro' or in favour of something).
'new guinea' becomes 'ng' (this could be a standard abbreviation I've not previously seen).
'pro'+'ng'='PRONG'

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(Other definitions for prong that I've seen before include "Spur; projecting part" , "Fork part" , "tip?" , "Tooth" , "branch" .)

I've seen this clue in The Daily Express.

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