A birdie shows one’s good at golf? Poppycock! (6)

I believe the answer is:

parrot

I'm a little stuck... Click here to teach me more about this clue!

'a birdie' is the definition.
(I've seen this before)

I can't explain the rest of the clue.

(Other definitions for parrot that I've seen before include "Tropical bird to repeat mindlessly" , "Mimic like exotic bird" , "Copycat who does not understand words or acts imitated" , "Repeat without understanding" , "Recite" .)

I've seen this clue in the Evening Standard.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.