Round peg? (3)
I believe the answer is:
tee
This clue might be a double definition.
'round' is the first definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps there's a link between them I don't understand?
'peg?' is the second definition.
(I know that tee is a type of peg)
Can you help me to learn more?
(Other definitions for tee that I've seen before include "supporter on course" , "Starting peg" , "Stand" , "Golfing item" , "Where a hole starts" .)