Champion traps a wild animal (5)
I believe the answer is:
beast
'wild animal' is the definition.
(I've seen this in another clue)
'champion traps a' is the wordplay.
I cannot really understand how this works, but
'a' is found in the answer.
'champion' could be 'best' (similar in meaning) and 'best' is found within the leftover letters.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for beast that I've seen before include "Nasty type" , "Animal; cruel person" , "wild creature" , "Dangerous animal" , "Animal, creature" .)