Crossword Genius

Hard work, an advertising phrase (6)

Ross

I believe the answer is:

slogan

'advertising phrase' is the definition.
(I've seen this before)

'hard work an' is the wordplay.
'hard work' becomes 'slog' (a slog is a long or difficult task).
'slog'+'an'='SLOGAN'

(Other definitions for slogan that I've seen before include "Tag line" , "War cry - advertising jingle" , "Identifying catchword" , "Catchy phrase in advertisement etc" , "Logo" .)

I've seen this clue in The Telegraph.
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