Pendulum path (3)

I believe the answer is:

arc

'pendulum path' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for arc that I've seen before include "Luminous electrical discharge" , "Curved part of circle" , "part of turning circle?" , "Portion of a circle" , "section of Circle Line" .)

I've seen this clue in The Wall Street Journal, the King Feature Syndicate and the Newsday.

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