The first composer to go abroad (6)
I believe the answer is:
travel
'go abroad' is the definition.
(I've seen this in another clue)
'the first composer' is the wordplay.
'the first' becomes 't' (1st letter of 'the').
'composer' becomes 'ravel' (Maurice Ravel, t875-t937).
't'+'ravel'='TRAVEL'
'to' is the link.
(Other definitions for travel that I've seen before include "Varlet (anag.)" , "Move from one place to another" , "Journey from one place to another" , "Go on a trip" , "Make a journey" .)