Milky food — and endless mint — one put out for visiting assortment of wildlife? (7)

'assortment of wildlife?' is the definition.
The definition suggests a singular noun which matches the answer.

'milky food and endless mint one put out for visiting' is the wordplay.
I cannot really see how this works, but
'food' could be 'matzo' (matzo is a kind of food) and 'matzo' is located in the answer.
'and' could be 'n' (common abbreviation for 'and') and 'n' is found within the answer.
'one' could be 'o' (I've seen this in other clues) and 'o' is found in the answer.
No letters remain.
This explanation may well be incorrect...

Can you help me to learn more?