Crossword Genius

Verbally, was jousting for some time (9)

Ross

I believe the answer is:

fortnight

'some time' is the definition.
(two weeks)

I can't explain the rest of the clue.

(Other definitions for fortnight that I've seen before include "Two weeks" , "Half a lunar month" , "Fourteen days" , "short period?" , "couple of weeks" .)

I've seen this clue in The Guardian.
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