Run into the last place to be seen with a musician (8)
I believe the answer is:
trombone
'musician' is the definition.
(a trombone player)
'run into the last place to be seen with a' is the wordplay.
'run' becomes 'r' (cricket abbreviation).
'into' indicates putting letters inside.
'the last place' becomes 'tomb' (a tomb is a resting place).
'to be seen with' means one lot of letters go next to another.
'a' becomes 'one'.
'r' inserted inside 'tomb' is 'tromb'.
'tromb'+'one'='TROMBONE'
(Other definitions for trombone that I've seen before include "Brass band instrument" , "Blow me!" , "Musical instrument with long slide" , "source of notes" , "Bfrass wind instrument with slide" .)