Come down between two points of some antelope (6)
I believe the answer is:
elands
'some antelope' is the definition.
'come down between two points' is the wordplay.
'come down' becomes 'land' (to land is to come down after flying).
'between' indicates putting letters inside.
'two points' becomes 'ES' (two compass points).
'land' put within 'es' is 'ELANDS'.
'of' is the link.
(Other definitions for elands that I've seen before include "Animals" , "Large African antelopes" , "African antelopes with twisted horns" .)