There's nothing about trapping the animal (3)
I believe the answer is:
roe
'animal' is the definition.
(I've seen this before)
'there's nothing about trapping' is the wordplay.
I cannot quite understand how this works, but
'nothing' could be 'o' (looks like zero - 0) and 'o' is located in the answer.
'about' could be 're' ('re' means regarding or about) and 're' is found within the leftover letters.
No letters remain.
This explanation may well be incorrect...
'the' acts as a link.
Can you help me to learn more?
(Other definitions for roe that I've seen before include "Mass of fish's eggs" , "Caviar" , "Lobster's ripe ovary" , "Food from fish" , "Swift runner" .)