Crossword Genius

Watchword of many a German? (5)

Ross

I believe the answer is:

motto

'watchword' is the definition.
(thesaurus)

'many a german?' is the wordplay.
'many' becomes 'm' (**).
'a german?' becomes 'otto' (I've seen this before).
'm'+'otto'='MOTTO'

'of' acts as a link.

(Other definitions for motto that I've seen before include "Saw" , "Phrase on, eg, family coat of arms" , "device" , "Phrase in a Christmas cracker" , "Recurring musical phrase" .)

I've seen this clue in the Evening Standard.
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