Short walk for a barrister (5)

I believe the answer is:

brief

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This clue might be a double definition.

'short walk' is the first definition.
'brief' can be an answer for 'short' (I've seen this before). I am unsure of the 'walk' bit.

'for a barrister' is the second definition.
(I've seen this before)

Can you help me to learn more?

(Other definitions for brief that I've seen before include "scanty" , "Short - work for a barrister" , "Case given to a barrister" , "Short or concise" , "brusque > QC, perhaps" .)

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

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