Singer Burl (4)
I believe the answer is:
ives
'singer burl' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for ives that I've seen before include "American composer of Three Places in New England, d. 1954" , "St -, Cornish resort" , "he composed" , "US composer, d. 1954 - US folk singer, d. 1995" , "US composer, Charles" .)