Match later turned around in the middle (9)
I believe the answer is:
correlate
'match' is the definition.
(correlating is a kind of matching)
'later turned around in the middle' is the wordplay.
'later turned' becomes 'taler' (I am not sure about this - if you are sure you should believe this answer much more).
'around' says the letters should be written backwards.
'in' means one lot of letters goes inside another.
'the middle' becomes 'core'.
'taler' in reverse letter order is 'relat'.
'relat' placed into 'core' is 'CORRELATE'.
Can you help me to learn more?
(Other definitions for correlate that I've seen before include "Establish a mutual relationship between (things)" , "Match" , "To be linked to each other; trace role (anag.)" , "Be complementary" , "Bring (things) into correspondence" .)