Bird that's well under par? (9)
I believe the answer is:
albatross
'bird' is the definition.
(albatross is a kind of bird)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for albatross that I've seen before include "See 7" , "The bird of The Ancient Mari- ner" , "golfing term" , "Long-winged sea-bird, a constant burden" , "Spectacular hole" .)