Saucy R&B covers you heard creating trouble (7)
I believe the answer is:
perturb
'trouble' is the definition.
(I know that perturb is a more specific form of the action the trouble)
'saucy rb covers you heard' is the wordplay.
'saucy' becomes 'pert' (synonyms).
'covers' is an insertion indicator.
'you heard' becomes 'U' (homophone of 'you').
'pert'+'rb'='pertrb'
'pertrb' placed around 'u' is 'PERTURB'.
'creating' is the link.
(Other definitions for perturb that I've seen before include "Disquiet, disturb" , "Discountenance" , "Disturb greatly" , "Unsettle, make anxious" , "Disturb the composure of" .)