Send soprano in (4)
I believe the answer is:
ship
'send' is the definition.
(to send overseas)
'soprano in' is the wordplay.
'soprano' becomes 's' (musical abbreviation).
'in' becomes 'hip' (both can mean fashionable).
's'+'hip'='SHIP'
(Other definitions for ship that I've seen before include "Large craft" , "Take on" , "eg QE2" , "Transport as on sea-going vessel" , "Navigable vessel" .)