The most common and most likely answer to this crossword clue is the 3 plus 5 letter word WET NURSE
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More clues leading to the result WET NURSE
- Supply wren with suet feeder
- Ewe turns out to be supplier of milk
- Childcare specialist went berserk, sure to be replaced
- She feeds bouncy wee runts
- Young feeder sure went crazy
- Milk supplier turns rum into water
- Pamper wee runts
- Alternative milk supplier's bag reportedly inferior per Spooner
- Nuts were crushed for the stand-in feeder
- Fake news? True, she does provide nourishment initially
Buddy explains!

The straight part
We know that "Alternative milk supplier" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case alternative milk supplier = wet nurse.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does WET NURSE mean?
WET NURSE noun- A woman hired to suckle another woman's child.
- (by extension) Someone who treats someone else with excessive care.