Aim to catch glimpse of rare goat-antelope (5)
I believe the answer is:
goral
'rare goat-antelope' is the definition.
I can't tell whether this defines the answer.
'aim to catch glimpse' is the wordplay.
'aim' becomes 'goal' (I've seen this before).
'to catch' is an insertion indicator.
'glimpse' becomes 'r' (I can't explain this - if you can you should believe this answer much more).
'goal' placed around 'r' is 'GORAL'.
'of' acts as a link.
Can you help me to learn more?
(Other definitions for goral that I've seen before include "sort of antelope" , "mountain-roamer?" .)