Gazelle, for example (8)
I believe the answer is:
antelope
'gazelle for example' is the definition.
(gazelle is a kind of antelope)
This is the entire clue.
(Other definitions for antelope that I've seen before include "Horned animal" , "Wild creature" , "Fast runner" , "Eg, gazelle or gnu" , "Swift-running animal like deer" .)