Tries to get into Madrid team’s practice session (9)
I believe the answer is:
rehearsal
'practice session' is the definition.
(rehearsal is a kind of practice session)
'tries to get into madrid team's' is the wordplay.
'tries' becomes 'hears' (as in trying or hearing in a trial).
'to get into' means one lot of letters goes inside another.
'madrid team' becomes 'Real' (Real Madrid football club).
'hears' inserted within 'real' is 'REHEARSAL'.
(Other definitions for rehearsal that I've seen before include "Practice session in preparation for public performance" , "Preparation for a show" , "Dummy run" , "Drill" , "Play run-through" .)