Message from turbulent Split received in central Greece (7)
I believe the answer is:
epistle
'message' is the definition.
(I know this)
'turbulent split received in central greece' is the wordplay.
'turbulent' indicates anagramming the letters.
'received in' indicates putting letters inside.
'central' means to look at the middle letters.
The middle letters of 'greece' are 'ee'.
'split' with letters rearranged gives 'pistl'.
'pistl' going into 'ee' is 'EPISTLE'.
'from' is the link.
(Other definitions for epistle that I've seen before include "Paul's work" , "may read this" , "Letter from a saint" , "verse composition" , "one from Paul?" .)