Cash to cover Renewable Energy Target is all make-believe (8)

I believe the answer is:

pretence

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'make-believe' is the definition.
(I've seen this before)

I don't understand the rest of the clue.

(Other definitions for pretence that I've seen before include "False show hiding reality" , "Ten creep (anag.)" , "Make-believe, or false claim to merit" , "False show; make-believe" , "it can't be true!" .)

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

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