Riffs in a Stones hit (9)
I believe the answer is:
sensation
'riffs in a stones hit' is the definition.
'sensation' can be an answer for 'hit' (I've seen this in another clue). I am unsure of the 'riffs in a stones' bit.
'in a stones hit' is the wordplay.
'hit' is an anagram indicator.
'in'+'a'+'stones'='inastones'
'inastones' with letters rearranged gives 'SENSATION'.
Can you help me to learn more?
(Other definitions for sensation that I've seen before include "Feeling produced by stimulation, or dramatic news (9)" , "Scandal" , "Feeling, awareness of stimulation" , "Awareness of a stimulus, such as heat or pain" , "Feeling; thrilling person or thing" .)