The most common and most likely answer to this crossword clue is the 8 letter word MARJORAM
I've seen this crossword clue in The Daily Telegraph
M
A
R
J
O
R
A
M
More clues leading to the result MARJORAM
- Plant officer eats right before a mass
- Leading article male’s written about right herb for cooking
- After damage, preserve sandwiches or seasoning
- Herb little woman found in grass
- Major flooding about to ruin plant
- Spoil Scottish sweetheart with butter and herb
- Spoil sweetheart with butter and spice
- Spoil preserve adding in yellow herb
Buddy explains!

The straight part
We know that "herb" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case herb = marjoram.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 MARJORAM mean?
MARJORAM noun- A herb of the mint family, Origanum majorana, having aromatic leaves.
- The leaves of this plant used in flavouring food.