Not all change is hard for hostess (6)
I believe the answer is:
geisha
'hostess' is the definition.
(Japanese woman hosting or entertaining men)
'not all change is hard' is the wordplay.
'not all' says the answer is hidden in the clue (only some of the letters).
'GEISHA' is hidden within 'change is hard'.
'for' acts as a link.
(Other definitions for geisha that I've seen before include "Professional female companion in Japan" , "He's a GI (anag.)" , "Japanese paid companion" , "Hostess in a kimono" , "Professional Japanese hostess and entertainer of men" .)