Crossword Genius

After dumping fellow, somehow life goes on, to coin a phrase (9)

Ross

I believe the answer is:

neologise

'coin a phrase' is the definition.
(to neologise is to create new words)

I don't understand the remainder of the clue.

(Other definitions for neologise that I've seen before include "use new words" , "find coin" , "Find new coinage" .)

I've seen this clue in The Independent.
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