Catches wild hares (5)
I believe the answer is:
hears
'catches' is the definition.
'wild hares' is the wordplay.
'wild' indicates an anagram.
'hares' is an anagram of 'HEARS'.
(Other definitions for hears that I've seen before include "Perceives sound" , "Finds out; tries" , "Tries judicially" , "Listens and pays attention" , "Share (anag.)" .)