What does the cryptic crossword clue "Pigment sounds more likely to ooze (5)" mean?

The definition is "Pigment". The wordplay uses a homophone (sounds like). Homophone of “seepier” The answer is SEPIA.

Pigment sounds more likely to ooze (5)

Guardian Cryptic #28148 | 27 Across | 2020-06-01 flower