Hard work, getting a new catchphrase (6)
I believe the answer is:
slogan
'catchphrase' is the definition.
(I've seen this before)
'hard work getting a new' is the wordplay.
'hard work' becomes 'slog' (I've seen this before**).
'getting' means one lot of letters go next to another.
'a new' becomes 'an' (I've seen this in other clues).
'slog'+'an'='SLOGAN'
(Other definitions for slogan that I've seen before include "Marketing phrase" , "Ad. catchphrase" , "Tag line" , "'Motto, watchword (6)'" , "Catchy phrase in advertisement etc" .)