Direction to carry on packing (7)

I believe the answer is:

stowage

'packing' is the definition.
(thesaurus)

'direction to carry on' is the wordplay.
'direction' becomes 'S' (S is an example).
'carry on' becomes 'wage' (as in waging war).
's'+'to'+'wage'='STOWAGE'

(Other definitions for stowage that I've seen before include "Cargo area on board" , "Storing space" .)

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

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