Going forward with topic about endless love (2,3,4)

I believe the answer is:

on the move

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'going' is the definition.
Both the answer and definition are adjectives. Maybe there's a link between them I don't understand?

I don't understand the remainder of the clue.

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(Another definition for on the move that I've seen is " Travelling".)

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

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