Parson-bird starts to turn up incidentally (3)
I believe the answer is:
tui
'parson-bird' is the definition.
I can't judge whether this defines the answer.
'starts to turn up incidentally' is the wordplay.
'starts to' indicates taking the first letters.
The first letters of 'turn up incidentally' is 'TUI'.
Can you help me to learn more?
(Other definitions for tui that I've seen before include "NZ honeyeater" , "New Zealand honey-guide" , "New Zealand native" , "New Zealand bird" , "New Zealand honeyeater" .)