What does the cryptic crossword clue "Pitch perfect opera singer by all conclusions (3)" mean?

The definition is "Pitch". The wordplay uses acrostic. last letters of "perfect opera singer" = TAR; definition: "Pitch" The answer is TAR.

Pitch perfect opera singer by all conclusions (3)

Independent Cryptic #11802 | 11 Across | 2024-08-07 flower