Others are different with new cut (7)
I believe the answer is:
shorten
'cut' is the definition.
(shortening is a kind of cutting)
'others are different with new' is the wordplay.
'are different with' indicates an anagram.
'new' becomes 'n'.
'others' with its letters mixed up with 'n' can make 'SHORTEN'.
(Other definitions for shorten that I've seen before include "contract" , "Reduce in length" , "Abridge" , "Put extra fat" , "Curtail" .)