Singer Orbison (3)
I believe the answer is:
roy
'singer orbison' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for roy that I've seen before include "-- Hattersley; -- Jenkins" , "Rob --, Scots outlaw" , "'Rob ..., ... Rogers (3)'" , "- Orbison, US singer" , "Man" .)