Record somewhat split EMI's executives (7)
I believe the answer is:
itemise
'record' is the definition.
('record'->'itemize' is in my internal thesaurus and 'ize'->'ise')
'somewhat split emi's executives' is the wordplay.
'somewhat' indicates the answer is hidden within the clue.
'ITEMISE' is hidden within 'split emis executives'.
(Other definitions for itemise that I've seen before include "Set down separately" , "Enumerate" , "break down" , "Read off list of things one by one" , "catalogue" .)