Catches wild hares (5)
I believe the answer is:
hears
'catches' is the definition.
(catch can mean to hear or pick up)
'wild hares' is the wordplay.
'wild' is an anagram indicator.
'hares' with letters rearranged gives 'HEARS'.
(Other definitions for hears that I've seen before include "Perceives sound" , "Finds out; tries" , "Tries judicially" , "Listens and pays attention" , "Share (anag.)" .)