Time for a walk (5)

I believe the answer is:

march

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'for a walk' is the definition.
(march is a kind of walk)

I don't understand the remainder of the clue.

(Other definitions for march that I've seen before include "Military walk; month" , "Moving demonstration" , "Month - proceed" , "Walk in a resolute manner" , "The month for military movement" .)

I've seen this clue in The Mirror.

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