There's something rhythmic, for example, in changing gear (6)
I believe the answer is:
reggae
'there's something rhythmic' is the definition.
I can't judge whether this definition defines the answer.
'example in changing gear' is the wordplay.
'example' becomes 'eg' (short for 'exempli gratia', 'for example' in Latin).
'in' indicates putting letters inside.
'changing' is an anagram indicator.
'gear' anagrammed gives 'rgae'.
'eg' going into 'rgae' is 'REGGAE'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for reggae that I've seen before include "W. Indian music style" , "Popular music of the West Indies" , "Jamaican musical style" , "Music style from Jamaica" , "West Indian music with strong subsidiary beat" .)