Got closer to listener in wrong end (6)
I believe the answer is:
neared
'got closer' is the definition.
(I've seen this in another clue)
'listener in wrong end' is the wordplay.
'listener' becomes 'ear' (body part which hears or listens).
'in' indicates putting letters inside.
'wrong' indicates an anagram.
'end' is an anagram of 'ned'.
'ear' inserted within 'ned' is 'NEARED'.
'to' acts as a link.
(Other definitions for neared that I've seen before include "Approached, drew close" , "Approached, came close" , "Got closer" , "Drew nigh" , "Drew closer to" .)