Pole at the Highland Games (5)

I believe the answer is:

caber

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'pole' is the definition.
(I know that caber is a type of pole)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for caber that I've seen before include "Something tossed in the Highlands" , "Tree trunk tossed in sport" , "Thrown tree trunk" , "Scots projectile" , "Wooden pole" .)

I've seen this clue in The Irish News and The Globe and Mail.

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