One working the land is used to steer (6)

I believe the answer is:

tiller

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'used to steer' is the definition.
(I've seen this before)

I don't understand the remainder of the clue.

(Other definitions for tiller that I've seen before include "Farmer" , "Bar that manipulates rudder" , "Ploughman - helm" , "used to steer" , "Lever to turn the rudder on a boat" .)

I've seen this clue in The Guardian.

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