Recent change to middle (6)
I believe the answer is:
centre
'middle' is the definition.
('centre' can be a synonym of 'middle')
'recent change' is the wordplay.
'change' indicates an anagram.
'recent' with letters rearranged gives 'CENTRE'.
'to' acts as a link.
(Other definitions for centre that I've seen before include "and this may follow 26, 25 [LEFT RIGHT]" , "focus" , "Heart" , "'Things fall apart; the ... cannot hold' (Yeats)" , "Midpoint" .)