What does the cryptic crossword clue "What sounds like desirable job description? Exactly (5)" mean?

The definition is "Exactly". The wordplay uses a homophone (sounds like). Homophone of “plum”, as in a plum job The answer is PLUMB.

What sounds like desirable job description? Exactly (5)

Guardian Cryptic #29403 | 17 Across | 2024-06-07 flower