11 across
Expert
not
to
have
enough
money,
it’s
said,
as
milk
producer’s
helper
(9)
Expert not to have enough money, it’s said, as milk producer’s helper (9)
hints
0
checks
0
hints
The definition is at the end of the clue.
How the clue works
The definition is milk producer's helper, referring to prolactin, the hormone that supports lactation. The wordplay starts with PRO, meaning "Expert". Then "not to have enough money, it's said" gives us LACTIN — a homophone of "lack tin", where "lack" means "not to have enough" and "tin" is slang for money. The "it's said" signals the homophone. Put them together and you get PRO + LACTIN = PROLACTIN.