Girl’s after a regular visitor to the dairy plant (8,4)

I believe the answer is:

guernsey lily

'plant' is the definition.
(type of plant)

'girl's after a regular visitor to the dairy' is the wordplay.
'girl' becomes 'lily' (girl's name).
'after' says to put letters next to each other.
'a regular visitor to the dairy' becomes 'Guernsey' (Guernsey is a type of cow).
'lily' after 'guernsey' is 'GUERNSEY LILY'.

(Another definition for guernsey lily that I've seen is " Plant with a head of pink flowers".)

I've seen this clue in The Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.