Rallying cry, slogan (9)

I believe the answer is:

watchword

I believe this clue is a double definition.

'rallying cry' is the first definition.
(I know this)

'slogan' is the second definition.
(I know that watchword is a type of slogan)

(Other definitions for watchword that I've seen before include "Slogan" , "rallying-cry" .)

I've seen this clue in the Sydney Morning Herald.

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