What does the cryptic crossword clue "He possibly angers working with it (5,3)" mean?

The definition is "He possibly". The wordplay uses an anagram. anagram of ANGERS + IT = INERT GAS; definition: "He possibly" The answer is INERT GAS.

He possibly angers working with it (5,3)

Times Cryptic #28999 | 17 Down | 2024-08-19 flower