GI or I am available for paper folding (7)

I believe the answer is:

origami

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

'gi or i am available' is the wordplay.
'gi or i am' anagrams to 'ORIGAMI'.
However, I'm unsure how the anagram is indicated.

'for' is the link.

Can you help me to learn more?

(Other definitions for origami that I've seen before include "Oriental art of paper folding" , "I'm a giro (anag)" , "The folding of sheets" , "Paperwork, as it were" , "Jap. paper-folding art" .)

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

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