Singer Buddy regularly sampled by T-Rex star (3,5)
I believe the answer is:
bob dylan
'singer' is the definition.
(I've seen this before)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for bob dylan that I've seen before include "Songwriter, winner of the 2016 Nobel Prize for Literature" , "Singer-songwriter, born Robert Allen Zimmerman in 1941" , "US singer/songwriter is nobly bad, curiously" , "US protest singer/songwriter" , "Singer" .)