What does the cryptic crossword clue "Trait guy improvised to get tip (8)" mean?

The definition is "tip". The wordplay uses an anagram. anagram of TRAIT + GUY = GRATUITY; definition: "tip" The answer is GRATUITY.

Trait guy improvised to get tip (8)

Daily Mail Cryptic #17189 | 9 Across | 2023-09-20 flower