The most common and most likely answer to this crossword clue is the 8 letter word SMOOTHIE
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More clues leading to the result SMOOTHIE
- Male in truth that is the type to exude charm
- One involved in brewing some hot drink
- Drink some hot, I suspect
- Harry Smith loves European drink
- Those I’m worried about love a drink
- Even, that is, for one that’s a charmer
- His “Me too!” may be duplicitous
- This rogue imbibes low energy drink
- After end of tedious debate, hurry for a drink
- Small insect that is circling over drink
Buddy explains!

The straight part
We know that "Drink that’s produced by cow, blended is the top and bottom of it" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case drink that’s produced by cow, blended is the top and bottom of it = smoothie.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 SMOOTHIE mean?
SMOOTHIE noun- A smooth-talking person.
- A drink made from whole fruit, thus thicker than fruit juice.
- A member of the mod subculture who is relatively non-violent and wears expensive clothing.