What does the cryptic crossword clue "Caged by parvenu, that chirruping bird (8)" mean?

The definition is "bird". The wordplay uses a hidden word. Hidden in "caged by parveNU, THAT CHirruping bird" The answer is Nuthatch.

Caged by parvenu, that chirruping bird (8)

Telegraph Prize Cryptic #3008 | 7 Down | 2019-06-16 flower