The most common and most likely answer to this crossword clue is the 5 letter word CUMIN
I've seen this crossword clue in The Times
C
U
M
I
N
More clues leading to the result CUMIN
- Spice starts to change unappetising milkshake into nectar
- Culinary plant with Latin name I recalled
- Endless manure thrown over home plant
- An hour and two thirds to dress Posh Spice
- Joint with hot seasoning
- Spice said to make an entrée
- Type of spice and some capsicum inside
- Regularly scrummy, Iona’s seasoning
- Sounds like it’s not goin’ to be a plant
- From capsicum, Indians extract curry seasoning
Buddy explains!

The straight part
We know that "Spice" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case spice = cumin.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 CUMIN mean?
CUMIN noun- The flowering plant Cuminum cyminum, in the family Apiaceae.
- Its aromatic long seed, used as a spice, notably in Indian, Middle Eastern, and Mexican cookery.