Animal in far part of the territory (5)

I believe the answer is:
eland
'animal' is the definition.
(eland is a type of antelope)
'far part of the territory' is the wordplay.
'far part of' becomes 'e' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'the territory' becomes 'land' (land is a kind of territory).
'e'+'land'='ELAND'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for eland that I've seen before include "Wild beast" , "Spiral-horn antelope" , "Antelope seen by Africans" , "Large spiral-horned African antelope" , "One browses in the African plain" .)
