Moveable men (5)

I believe the answer is:

pawns

I'm a little stuck... Click here to teach me more about this clue!

'men' is the definition.
(I know this)

I cannot understand how the rest of the clue works.

(Other definitions for pawns that I've seen before include "Minor chessmen" , "Men on board" , "made pledges" , "The foot-soldiers in chess" , "Chess pieces" .)

I've seen this clue in the Evening Standard.

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