Watch insect run off with lion's prey (8)
I believe the answer is:
antelope
'watch insect' is the definition.
The answer and definition can be both animals as well as being singular nouns.
Maybe you can see a link between them that I can't see?
'run off with lion's prey' is the wordplay.
'run off' becomes 'elope' (synonyms).
'with' says to put letters next to each other.
'lion's prey' becomes 'ant' (I can't explain this - if you can you should believe this answer much more).
'elope' after 'ant' is 'ANTELOPE'.
Can you help me to learn more?
(Other definitions for antelope that I've seen before include "Deer-like ruminant" , "One petal for this animal" , "Eg, gazelle or gnu" , "A graceful gazelle from Africa" , "Wild creature" .)