Crossword Genius

Flood medium with dairy product (6)

Ross

I believe the answer is:

myriad

I'm a little stuck... Click here to teach me more about this clue!

'flood' is the definition.
(thesaurus)

'medium with dairy product' is the wordplay.
I cannot really see how this works, but
'medium' could be 'm' (as in UK clothing sizes) and 'm' is found within the answer.
an anagram of 'dairy' is 'yriad' which is within the answer.
No letters remain.
This may be the basis of clue (or it may be nonsense).

Can you help me to learn more?

(Other definitions for myriad that I've seen before include "Lots of" , "Too numerous to be counted" , "Host" , "immense quantity" , "Numberless" .)

I've seen this clue in the Sydney Morning Herald.
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.