Farm animal, slaughtered if here (6)
I believe the answer is:
heifer
'farm animal' is the definition.
(I've seen this in another clue)
'slaughtered if here' is the wordplay.
'slaughtered' indicates an anagram.
'if'+'here'='ifhere'
'ifhere' is an anagram of 'HEIFER'.
(Other definitions for heifer that I've seen before include "beast" , "Cow that has borne one or no calves" , "Female bovine that has not given birth" , "part of stock" , "a little lower" .)