Insect that jumps to escape being caught (4)
I believe the answer is:
flea
'insect that jumps' is the definition.
'flea' can be an answer for 'insect' (flea is a kind of insect). I am not sure about the remainder of the definition.
'escape being caught' is the wordplay.
'escape' becomes 'flee' (I've seen this in another clue).
'being caught' shows a homophone (sound like) (to catch something can mean to hear it).
'flee' is a homophone of 'FLEA'.
'to' is the link.
Can you help me to learn more?
(Other definitions for flea that I've seen before include "one is proverbially fit" , "Jumping parasite" , "Jumping bloodsucker" , "Bug" , "Jumping, biting insect" .)