Crossword Genius

'Work hard!' -- a new rallying cry (6)

Ross

I believe the answer is:

slogan

'rallying cry' is the definition.
(thesaurus)

'work hard a new' is the wordplay.
'work hard' becomes 'slog' (I've seen this before**).
'a new' becomes 'an' (I've seen this in other clues).
'slog'+'an'='SLOGAN'

(Other definitions for slogan that I've seen before include "Motto, catchy phrase" , "Shibboleth" , "short political statement" , "Memorable advertising phrase" , "Advertising catchphrase" .)

I've seen this clue in The Telegraph.
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