Our rap somehow causes commotion (6)
I believe the answer is:
uproar
'commotion' is the definition.
(I know that uproar is a type of commotion)
'our rap somehow' is the wordplay.
'somehow' indicates an anagram.
'our'+'rap'='ourrap'
'ourrap' anagrammed gives 'UPROAR'.
'causes' is the link.
(Other definitions for uproar that I've seen before include "Noisy and angry protest" , "Loud group protest" , "Loud and impassioned noise or disturbance" , "A lot of noise, hubbub" , "Violewnt outburst of noise, pandemonium" .)