What does the cryptic crossword clue "Find aura unusually bold (8)" mean?

The definition is "bold". The wordplay uses an anagram. anagram of FIND + AURA = UNAFRAID; definition: "bold" The answer is UNAFRAID.

Find aura unusually bold (8)

Guardian Cryptic #23308 | 23 Across | 2004-11-24 flower