Remember misdirecting a caller (6)
I believe the answer is:
recall
'remember' is the definition.
(to recall something is to remember it)
'misdirecting a caller' is the wordplay.
'misdirecting' indicates an anagram (I've seen 'misdirected' mean this (I've seen this in other clues)).
'caller' is an anagram of 'RECALL'.
(Other definitions for recall that I've seen before include "Evoke" , "Summon back or bring to mind" , "Summon back, perhaps to mind" , "Don''t forget - come again" , "order to come back" .)