Highland games pole (5)
I believe the answer is:
caber
'highland games pole' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for caber that I've seen before include "Tree trunk tossed in sport" , "Scotsmen throw it in sport" , "Highland Games event" , "The Scots throw it in sport - brace yourself" , "One Highlanders toss" .)