A tip-top composer will go far (6)
I believe the answer is:
travel
'will go far' is the definition.
I can't judge whether this defines the answer.
'a tip-top composer' is the wordplay.
'a tip-top' becomes 't' (top of the word 'tip-').
'composer' becomes 'ravel' (I've seen this before).
't'+'ravel'='TRAVEL'
Can you help me to learn more?
(Other definitions for travel that I've seen before include "Locomotion" , "Journey from one place to another" , "Voyage" , "Varlet (anag.)" , "Go on a journey" .)