Rare new breed (4)
I believe the answer is:
rear
'breed' is the definition.
(I've seen this in another clue)
'rare new' is the wordplay.
'new' indicates an anagram.
'rare' is an anagram of 'REAR'.
(Other definitions for rear that I've seen before include "Bring up and care for" , "Hind part" , "Bring up - the tail" , "Raise; behind" , "Raise - back" .)