Singer Redding (4)
I believe the answer is:
otis
'singer redding' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for otis that I've seen before include "---- Redding, 1941-67, soul singer" , "Place of worship; side part of head" , "US inventor" , "regretful lady" , "Lift man" .)